I picked it up yesterday, and let me tell you, the price drop was needed.
Tron 2.0 starts off slower than any other Xbox Game I can think of. You follow an avatar, doing mindless stuff, (fancy grad the red key to open the red dorr, so you can grab the blue key to open THAT door) occasionally intrupted by loading screens.
The Light cycles never quite give you the camera angle you need to see arounhd you.
I recommend staying away from this one.