650

I’ve had many roombas from the 650, i7, S9x3 (they sent me 3 replacements), and a braava jet 240. They work good for awhile, but the crappy software updates, constant errors and resets broke me. I seriously love iRobot hardware vacuum performance as in the amount of dirt they pick up, but the software is absolute garbage and a vacuum is completely useless if it can’t navigate correctly. I still have my first 650 bouncing around in my basement and the i7 has been moved to garage duty. The S9 ended up in pieces. My main two robot vacuums are roborocks and I love their navigation. I wish I could take the navigation from a Roborock and put it into a roomba.

So many questions. Namely, how the hell does a company that was once at the top of its market let itself go to seed like this? And secondly, why on earth what I need my fucking vacuum cleaner to be connected to the cloud? My iRobot 650 that I bought used over a decade ago is still going strong.

My neighbor threw away a perfectly good 960 and I've been using it for three years, 3 times a week on 750 sq ft. (It had hair wrapped around the brushes, once I cleaned it out it ran just fine). It's easy to take apart and clean. I haven't had to change the tires yet, they are still going strong. I'm still on the original battery as well. The bin latch to the filter breaks easily (I've gone through 2 and now I just leave it broken). I do have to clean hair out of the brush ends often but that's easy enough to do. It's hasn't broken down on me yet. On my old 650, I replaced the side brush motor and tires which would be the same process on this model. I'm very happy with it especially since it was free.

I have a "dumb" Roomba that I bought way back in 2016 on a Prime Day sale. It doesn't have any of the smart features that a lot of the newer models have. In general it's not perfect but I would say it does a pretty good job and if you don't like vacuuming as a regular chore it'll allow you to vacuum more often than you personally would which overall is a net positive. Since moving to a bigger place a few years back, I ended up buying a Miele canister vac so that I can efficiently clean different parts of my home simultaneously. So the Roomba is vacuuming one section while I use the Miele to vacuum another section. The smaller your place the more effective a robot vacuum will be as your primary vacuum, but if you have a bigger place you'll still have to charge the vacuum after one section, then move it to another location to finish the whole house.

Someone will buy it. The product line won't go away. Regardless the vacuum will work fine for a long time even if app access is lost. I have a 2014 version I still use on the regular. 

I have one basic Roomba that moves around randomly and another that supposedly maps the space. The cheaper, random movement robot is vastly superior in all ways.

Older roombas are simple, reliable, durable, effective, and cheap. But they don't have smart navigation or mapping where you can ask them to clean specific areas. If you want navigation they become less cheap and less durable. I have a 10yo 600 series roomba and a new Roborock Q5. Q5 is great but I'm skeptical that it's going to last as long.