Can't recommend it highly enough. It does all floors, it doesn't use electricity, lightweight, no plugs or cords, easy and quick to use, far less hassle than a vacuum cleaner and much more environmentally friendly, and so much cheaper - my top of the range one (4 settings no less, for different types of floor) cost me about £23.
I can see I'm going to be doing a lot less vacuuming in future, but the place will still be cleaner.