I've got 1. It does what it's supposed to, but we don't use it daily. It's a little short on power so you have the choice of letting it bounce or bogging it down in some situations, usually carpet.
All in all if your a guy who wants to have everything, it's a good light duty quick use scrubber. My main uses are pre-srcubbing moderately soiled stairs, or a light scrub behind and around toilets and other tight areas when doing t&g. If you clean shower stalls frequently it can be nice to have.
We've had ours for 4 years even though it's plastic and seems a little light duty. Having a spare battery is a good idea.