Good Stuff
Intuitive Controls. Movement feels good. FAST! Great Track Mechanics the way you can ride up on the walls and ceiling. Fun Tracks. Vibrant Eye Candy and good 3D Models. Controller Support. Dynamic Booster Fire. Difficulty Adjustment.

Not so Good Stuff
The Set dressing on tracks, soundtrack and the selection of vehicles are pretty limited right now so it feels repetitive despite having many tracks.

Overall, this is really well put together. The only thing really missing is more variation in content that would bring you back or make you want to play more.