I own GH 1,2,& 3. I love them. This game I think was meant to have the entire kit, to maybe perhaps make it fun. The tracks and the new lay outs were anything but lame! I guess this is going to be how silly the franchise is going to become. Being a real guitar player, I guess I'd rather just pick up my real axe. I will be interested in the metallica game that will be coming out in '09. Hopefully, I will get to have fun playing fun songs. Which this game also lacked. I think out of the total 86 or something songs, I enjoyed maybe like 15 or a few more. I'm glad I didn't purchase the kit, for this to me is a rental game and not worth it's full purchase price.
There is a common problem with the ps2 version freezing. I couldn't even get through the sets because it would freeze on the second or third song. Even when it doesn't freeze the load times are extremely long. Rent this one for another console.