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.
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.