Not creating circuit or customization to the extreme, but the game is well made and fun. Load times are correct (unlike ModNation Racers), the circuits are nice (unlike LBPK). Solo the game is too easy once you understand how to manage / get the boost. To my mind the only clone of Mario Kart on PS3 really valid.
Positive: Getting immediate hand real F1 driver names (for those interested) local multiplayer Negative: limited circuits (but sufficient), weapons are starved of originality, the bonuses on the road are simple floating colored bubbles (visually it's cheap).