Just bought a turtles pro with some nice upgrades. We are loving it. I also got to play an AIQ pro.. great game as well. I think the pro turtles at a used price point is outstanding, and although the pro AIQ was sweet, I have my mind set on the AIQ premium. You really can't go wrong with either. I did feel that the shots on AIQ to me were easier than turtles.. but I like the challenge. People complain about the drains on TMNT but I haven't felt that its unfair. I know there's a ton of hype on GnR but stern has put out some great games.