I've said before (The W) that I don't think online gaming is all that important to the current crop of console's sales. Here (gamesarefun.com) is an editorial that agrees with me. I'll concede that some of the points sound like whiny complaining (its too hard/expensive to set up a home network), but they are all legitimate reasons why its only the hardcore gamers pining over any lack of online content, and not the gaming masses.
I tried to give it a chance, I really did. All in all, it's Driver 2 all over again. The few things that they added really didn't do anything for me, and it feels, to me, like a game that wasn't finished yet. I especially don't like the AI.