I have one... they work decently enough. It has next to no spin time however. Most games are playable with it and it works decently as a make-shift wheel for driving games.
I put it on my bartop, but if you are REALLY into any spinner games, you're better off getting a "real" spinner from SlikStik or Oscar. If you only play spinner games on rare occasions, it'll probably do.... if you plan on using a spinner a lot, I'd opt for something else.