Well, I haven't had too much time to play around with it, since I haven't gotten my new iMac yet, but I played around with it at the apple store and it was actually pretty cool.
Well, if you're asking me if it's worth spending the money.. I'd have to say it depends on what kind of person you are.
If you're looking for many buttons on it, obviously you won't find much in there.
however, the gestures are pretty cool, and it is the first mouse to ever do that.
And I've been thinking lately, that maybe apple will release updates for it to let people do more gestures. But who knows.
I can't really tell you much.. since it's a mouse. And that's something you need to pick out yourself. But, as far as good and bad goes, I haven't really heard any bad news about it. But then again.. it is a mouse.