and man, is it freakin' sweet.
Now I know what they meant when they recommended a 5.1 setup. This is the only game, ever, that's made my sound system feel way underpowered.
Quick workaround solution: crank the subwoofer way the hell up.
But yes, this game is already getting awesome after two levels. If you haven't already, go grab it.
I'll report on multiplayer once I get the chance to try it.