Great when you start...
I feel like I bought only a fourth of the game since I'm basically no one near done but it's just too difficult to get further.
I have done the same races over and over and over and did I mention over...
It gets me some points and opens a few things but it doesn't matter if the game is too hard to play.
Basically as I said...it's great at first, but unless you love punishment and throwing your controller I'd say rent this (if that's possible) and play it for a day or two before buying it.
If it had a way to tweak down the difficulty a bit I'd love it, so it isn't a bad game at all, just way too difficult. Maybe if you could slow down the other cars a bit with a difficulty slider or add an option to aid with drifting it would be a bit easier.
Also the graphic options aren't the best, as said in the Gamespot review, but if you know how to adjust your graphic card you can do so that way.
Anyway...
Peace!