Go buy it, it's a very well putten together game. If you enjoyed NFSU2, this is a must have. It's very arcade and doesn't try to fake being 'realisitc' like NFSU2 did.
The gameplay is funner and the options to customize the over 60 rides is insane. You can even change the materials of taillights, make chop tops, customize bikes, etc.
This game gets an easy 9/10 for me. Only thing irritating is a sound bug I've come across twice when switching vehicles in the garage. Otherwise I really enjoy the game.