I bought the j9+ based on all the reviews I was able to find and also that the previous s9 model was no longer available. The setup was super easy as long as one is comfortable using your phone's app to handle all the tasks. The initial mapping was very cool to watch. If you're a tech nerd, you'll love trying to figure out how the algorithms are working to navigate the furniture, walls, entry ways, etc. In about 40 minutes R2D2 mapped out my first floor very accurately and was able to work it's way around the jungle of chair legs at the dining room table. It took a while, but it managed! After the initial mapping run, it went right back to it's base and started charging automatically. Next was the actual vacuum run, but before that we decided to put a "no fly zone" around the Christmas tree and blanket around it. The app easily let me set up a 5x4 square which I placed in the map of the house - which was very cool, and pressed the "Vacuum Everything" button on my app. It was remarkable how R2D2 started in the room with the most dog hair and then proceeded to follow it's map throughout the house. The suction on the wood floors was excellent, and I was impressed when it rolled over the few throw rungs we have, I could hear it kick into a higher gear because it recognized the carpet. Our black lab leaves plenty of hair around on our light colored floors which made it easier to see that R2D2 was doing a great job. During the first mapping, I kept all the bedroom doors closed off the main hall. While it did the first vacuum I forgot the master bedroom door was open. It noticed the new opening, but did not enter the room. I took this as a new mapping run I would need to perform, but I was amazed when it completed the entire house, paused in the living room for about 10 seconds, and then proceeded back to the new opening it discovered previously. It recalled it found a new opening but did not disrupts it's current task - it finished and then returned back. We've only run it two times, but already we discovered that it remembered the master badroom, added it to the routine and completed the room before returning back to base. It also updated the map in the app and asked me about the new room and what to name it. I was also able to place the new boundaries for the entrance to the bedroom and master bath (which it also found while exploring). The app also shows pictures of obstacles R2D2 came in contact with during it's journey. A wire under the curio cabinet was captured in a crystal clear picture taken by R2D2 and sent to the app for me to decide whether this should be considered a permanent obstacle, or something which I could remove and it could continue working in this space next time. I simply moved the wire closer to the wall, let the app know it was taken care of, and we'll see how R2 does with it next time. I love this robot... I am super impressed by the effectiveness of the vacuum, the ease of the app, and how simple it was to set up. I have seen other reviews about noise, and speed, but it's no where near as loud as our Shark standup (which is a beast) and regarding the time, I set and forget. So far I have not had to come to it's rescue, but we also don't have a lot of things laying around on the floor which I guess would complicate things. For about 500 sq feet, the app tells me it's taking 90 minutes. No where close to fast, but I am writing this review while R2 is taking care of the floors! Very happy and I'll come back in a few months with an update....

One star is being overly generous. I don’t write reviews, one way or the other, but this was too large of an expense not to. If it helps just one person, it will be worth my time. I purchased this unit in Dec. ‘23. I used it maybe 10 times within the first year because I found that moving all the obstacles before vacuuming was a bit of a hassle, and also it just didn’t compare to my push vacuum in performance. I did like the fact that it was able to get in difficult spots, such as under the beds. A couple weeks shy of its one year warranty date it lost its suction. After some degree of difficulty in reaching customer service, a lengthy amount of time on the phone, and photos sent via email, diagnostics were run remotely and they determined that there was an issue with the base. A new base was sent in a timely manner and they offered to extend my warranty by three months. After setting up the new base I ran a quick run of one bedroom. The robot would not seal adequately enough to the new base to provide enough suction to empty the bin and I got an error message. Again, I went through the same lengthy process with customer service and it was determined that the entire unit needed to be replaced. My warranty on the original robot was now within a couple days of expiring so I asked if they would still honor the three month extension. After checking with supervision they informed me that since they were replacing the entire unit they would not be able to honor any further warranty on the new unit. Ok. New unit. It should last a while, right? The new robot arrived, again, in a timely manner. It set up easily and I mapped the house and vacuumed without difficulty. A month later I went to vacuum and I got a message that the unit was unavailable because the software was being upgraded but would be available shortly. Three days later it was still displaying the same message. I rebooted several times. Nothing. I finally resorted to a factory reset and now I can’t connect to the robot at all. I’ve since done some online research and there is a definite trend here with issues occurring during software upgrades. Folks are being run through hoops via customer service only to be told that there is no fix, but…get this…they are offering 50 whole dollars toward a new unit. No joke. Check Reddit. I call b.s. Save yourself the aggravation, time and expense and vacuum the old fashion way. This thing has not been worth it, IMHO.

At first I thought this was a silly gimmick. But it is a time saver that I wouldn't give up now. I should have purchased one sooner. It does a great job picking up dog hair. And the j9+ was reduced to a reasonable price with all the options I needed.

This roomba is definitely the best out of three we had as far as cleaning. It charges without a hitch and docks without any issues (that was a problem with the first one). The setup is as easy as it has always been, fitting nicely under a sideboard. It's been bung up by the dogs and it's own persistence of insisting to get over some ledges that are just too high for it and so durability is great (so is it's stupidity). However... This is the second self emptying one (s9 is the other) that gets the "empty the bin" error after three months and nobody at customer service will help. It is frustrating since we're busy running a business from home with two dogs and while it can keep up with the fur (I am not kidding!) but it will not empty. By now I am an expert on what needs cleaned and where the sensors are, the filters, even how to replace the motor and take it apart to declutter the bumper. For the s9 it's still worth the money, this one not really since it's the same as far as cleaning and I also have to empty the bin, that was what I had hoped would be resolved with this rather expensive new one. Hence the missing star.

Love this vacuum! It actively avoids furniture edges/sides with its new set of sensors. The older version would bump everything. With the app, I can stop it early and send it back home, in case I need to be on a video conference call.

Will not work in UAE at 220V. It needs 110V AC. No mention of voltage required anywhere in the listing. Finally had to contact iRobot in the US who asked me to return the item.

I've had this for a week now and loving it. The Roomba j9 learned its way around the house initially and still seems to be getting smarter with every run. It's been vacuuming the house every morning and the floors appear to be cleaner than ever before. It gets to places the Dyson never could and even outperforms IMO. Returns to the base in another room when needed to empty its bin and again when the job is done; all without any intervention on our part. My cat initially was terrified of the Roomba (she's scared of her own shadow anyway) but her terror seems to be evolving into cautious curiosity now. Eventually I expect they'll be fast friends. Thinking of buying another eventually to use on the second floor.

I've been owning this robot vacuum for 9 months and this is by far the worst iRobot product I've ever owned. I will compare this product to the last one I bought, which was the iRobot i7+. The J9+ has worst navigation. - It invents obstacles in the grain pattern of my floor and will go around it. - It has difficulty navigating to the right room and will get stuck and abort the job. - It stuggles at finding its base and docking on it. The J9+ has worst performance. - It stuggles at vacuuming dry kitchen debrit. - The side brush is unable to clean corners or close to walls. - It will not pickup pet hairs from my carpets The J9+ is louder than the i7 even on low power mode. The J9+ has a small form factor which lets it get under my furnitures. This is a positive feature. The J9+ struggles at emptying its bin automatically and regularly needs to do it more than once. The J9+ keeps losing connectivity with it's base station and the iRobot cloud. I wish I could return the product.

This j9+ is my second Roomba vacuum after my j5+ and was a really easy addition to the family and the Roomba app. I let the j5+ handle the main floor with its mainly hard surfaces and the j9+ is handling the 2nd floor which is almost all carpeted. The j9+ has noticeably more suck power than j5+ and works really well on the medium and low pile carpet. It climbs room transitions with ease, eg from the carpeted rooms to the tiled bathrooms. The Roomba neatly works around chair legs and kitty water dishes without bumping anything. No spilled water. Regular maintenance is simple and fast. After a few vacuum runs I had to remove the side brush to untangle a cat toy with a long yarn tail. I also checked for trapped carpet fibers in the spinning brushes and found almost none. I really love the app. I have been able to create daily cleaning schedules with times set to avoid our activity (upstairs gets vacuumed while we're making breakfast). I have it set to vacuum rooms in an order that is least likely to interfere with us even if we return upstairs sooner than usual. I added Clean Zones and a couple of Stay Away zones and now I can just let it do its thing. No regrets on this purchase.

This thing works pretty well. Only a couple of hiccups so far, trivial stuff. I have pets and the mess was constant. But not anymore. I always have my bare feet in the house and the difference is very obvious. I set this thing away every day and then once a week before I run out to town, I lift all the moveable things like chairs, ottoman, slippers and let it do its thing. Fabulous. Yes. It is loud when it empties itself, but it only does this for seconds and the end of its routine. The App is good too. Lets you customize the suction strength and how many passes etc. I like it. Once the drop the price again I will buy another one to replace my old roomba downstairs. I am almost tempted to buy the vacuum mop combo to give it a try.