Summary: The Scooba model 230 works reasonably well to clean floors, but it is not reliable at all. I own 2 Roomba 581, 2 Scooba 390 (in different apartments) and a Scooba 230. I'm quite impressed by the reliability of my Roomba robots. In 4+ years of use no one of them ever had problems. One of them even survived the cleaning of a floor where a large amount of water was spilt. I had only to replace the battery of one of them.
Summary: I have different kind of floor in my house - oak parquet, tile, carpet. This small robot is good for parquet only in my opinion. I'm afraid to run my old big scooba on my oak floor because it will make it too wet. My old scooba is very good on tile though. So, I like this little robot. I wish I could charge its battery externally so I can have always ready to go spare battery like on my old scooba.
Summary: I bought this used through Amazon. Sounds like a lot of iRobot products are buggy, but I've had two successfully purchases or used devices (iRobot Scooba 230 and a Roomba) through highly rated third-party sellers. I run the Roomba first, then the Scooba. Used on both vinyl flooring and tile and had no problems. Kicked up lint from the grout lines one time I used it, but I just waited until the floor dried and ran the Roomba through again.
Summary: Problems: I received my Scooba 230 just one week ago, and since then I had never gotten it to successfully run through a cleaning cycle without it stopping, and giving me an error (error code 1), despite nothing appearing to be wrong. Oddly waiting a few hours and trying again was the only thing that would make it work again, but only for a few minutes...then again the error would occur.
Summary: The iRobot is having issues negotiating with the air vents I have on the floor. It tends to get caught on it and then proceeds to drip and leave puddles of water right next to the vent itself. It also have some issues with cat litter, instead of cleaning it up, it smeared it all around the floor, which made a bigger mess that I had to clean up separately.