This game is amazing. I played through the first two levels of single player, and was blown away.
But then, my buddies and I fired up the multiplayer. Absolutely incredible, and tons of fun. Numerous times, either because of the curb stomp, the chainsaw, or a round ending shotgun blast, the lobby was filled with uproarious laughter.
If anyone is on the fence about this game, get it. Run, don't walk, and get this game.
Man, my PS3 might just collect dust for awhile...