Yeah, it's a great game.
I finished it on PS2, but then we lost the game. Since I was itching to play it, I got it for 360, and it's just so amazing looking. But I've only done a few fights in career mode (every time I sit down to play someone else wants to play on the 360, so I only get to play a match or two if I'm lucky).
The online is pretty fun. Granted, I haven't played any matches myself, because I'm pretty terrible at console games, but my cousin played a couple of matches while I watched.