I've yet to try it, I imagine it will depend quite a lot on how good an internet connection both of you have. It is going to be problematic over the internet because the game is so tight that even 50ms latency could be a real problem. It also supports system link if a friend wants to bring over their box which is good for low latency gaming. Still I'd rather have it than not and simply observing other people's games could be quite thrilling.
Darkheart
Darkheart