Title: Only useful in VERY SPECIFIC circumstances
Review: Yes it works. However, it's a lot slower than just getting out a mop and bucket and doing it yourself. Unlike the Roomba, you have to fill this with water and soap beforehand, and empty it out afterwards. You have to take the thing apart to do so both times. Furthermore, you really have to sweep beforehand, so you're only saving half the job in any case.
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