iRobot - Roomba® j9+ Self-Emptying Robot Vacuum
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Reddit Reviews:
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Last updated: Aug 1, 2025 Scoring
Liked most:
21
6
"I never see dog hair on my carpets when they run in contrast to older Roomba series and other brands. ... the Roomba j9 or 10 max is by far the best. ... The vacuum only models are great."
"I personally just bought a j9+ but the vacuum only unit a couple of weeks ago and it does such a great job. I have four dogs so it is running daily"
"I should also mention I have four dogs plus there are 2 Women living in the house, and the j9+ does a great job keeping our house clean."
17
14
"avoids obstacles like a champ."
"The J9+ is amazing with obstacles ... will ask you afterward if each is more permanent, such as furniture being moved around or added. Or if they are temporary, such as the 40 dog toys and balls I have here. It does this to learn"
"My Roomba J9+ avoided diarrhea"
20
6
"I never see dog hair on my carpets when they run in contrast to older Roomba series and other brands. ... the Roomba j9 or 10 max is by far the best. ... The vacuum only models are great."
"I can confidently tell you that the Roomba j9 or 10 max is by far the best. ... They stand out because I never see dog hair on my carpets when they run in contrast to older Roomba series and other brands."
"does a great job on carpets with cat hair."
8
2
"Comes with a base station that it blows the content into. ... Super low maintenance that way."
"The dual rollers, bin design (reduces filter clogging), dirt detection, and bin sensor for auto empty make it well suited for pet hair."
"I like having the bins for self emptying"
28
6
"I never see dog hair on my carpets when they run in contrast to older Roomba series and other brands. ... the Roomba j9 or 10 max is by far the best. ... The vacuum only models are great."
"I personally just bought a j9+ but the vacuum only unit a couple of weeks ago and it does such a great job. I have four dogs so it is running daily"
"I should also mention I have four dogs plus there are 2 Women living in the house, and the j9+ does a great job keeping our house clean."
Disliked most:
4
5
"the roombas have a HUGE problem with animal hair. ... Their rollers are not designed in any way that stops hair from getting wrapped up in the roller bits. ... On top of it, the roomba gives zero craps if the rollers are hitting strong resistance and will just keep trying to spin. ... the rollers would A) get animal hair wedged into their metaly rotatey motor parts almost instantly, B) keep spinning at full blast until they almost catch fire. ... I had to do pre-screens for dog hair every time we ran either model, because otherwise there was a good chance the house would smell like burnt plastic mixed with burnt hair after a run. ... The rollers had to be fully removed and cleaned after *every run*, sometimes even mid-run."
"the brushes pull up some of the moisture from the mop and then dust will clump up along with pet hair and clog before getting into the bin."
"it starts just wadding up hair and leaving it in chunks"
16
17
"It took some weeks and several "mapping runs" for it to finally figure things out, and then it broke and needed replacing. ... It was very frustrating to get working"
"My j9+ decided to pack it in 3 months after I got it and started throwing navigation errors and bricked itself quite a few times."
"I would recommend nobody buy a robot vacuum without Lidar at this point. ... I've used two different Roborock systems dating back 4-5 years and are still superior to iRobot's new stuff with only camera based detection and mapping systems. ... My J9+ literally gets lost in its own map and struggles to navigate at times. ... Sometimes it wanders around with an error in the app until it redocks and restarts cleaning."
1
7
"for the love of God please don get a roomba combo model. They don work… ever."
"Then the clean base decided it wanted to leak cleaning solution all over the mopping part of the robot."
"They don't seem to have enough traction while mopping even on their lowest setting and using plain water, it'll just start sliding and not go in a straight line. Then it'll give up and be in the middle of a room."
4
5
"the replacement dock they sent me doesn’t even work!"
"The J9+ was replaced 3 times on warranty and still couldn't reliably get around our house. ... 80% of the time I had to fix it being "stuck" on absolutely nothing."
"I'm 24 days into waiting even to get a reply with an ETA on the warranty service for my Combo j9+, which is fully out of commission. ... This, despite buying it with their premium warranty upgrade!"
6
5
"Those both sound like jet engines."
"before the S9/J9 were an actual nuisance with noise."
"The J9+ Combo runs loudly"
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