I've used it since the first Beta through the current RC and I'm not terribly impressed. It's has some nice things (Aero Peek, less services @ startup), but it also has some annoyances (admin privileges changed for the worse, UAC hasn't improved much at all really), and other than that it's still just Windows (plays my games, still fragments and does things irrationally sometimes). I'm sure I'll get it eventually, but I'm in no hurry. The best part about 7 is that they've let us all have it for free for about a year or so. That's a win.