These all suck....pun intended
My inlaws gave my wife a Roomba a few years ago when they were still a big deal. I knew it was a piece of crap before it ever came out of the box. It did not disappoint.
We "let" it do the wood floor in the kitchen and it would rumble around making noise for an hour, and get itself stuck under the kitchen table and have to be rescued. The $90 battery failed eventhough it was always left in it's charger and we always used it until the battery was dead.
It has to be completely taken apart and cleaned, far beyond the normal, "dump the waste basket" that they would have you believe....and even then, after spending 30min doing surgery on it, it was still the same POS it ever was.
So there it sits, out of site out of mind...with a new battery and a new sweeper brush, and we never use it, thankfully.