Custom games lobbies were awesome (though reach quickly replaced it for me and my friends.

I succumbed to the hype on this one.

I'm not enjoying it so far, but it was a gift so I feel inclined to see it through.

The most dissapointing thing for me is how hard it is to find a match for the DLC zombies maps - I'll probably never get a good run of the last 2/3 maps now.