I mean the title, it has the potential for greatness.  There are still a few bugs to work out. Mine doesn't roll very smoothly on the floor.  The bristle part of the hand tool won't stay clipped in to use and falls out, and it doesn't stand on it's own.    If those things were in play I would give it a 10 not just a 5 star.  I like it enough that I'm still very glad I have it.