I bought this because I needed an extra controller, and thought: "why not get an extra game for my XBox?".
This game is a LOT of fun to play in splitscreen offline co-op. Killing zombies by the hundreds, sharing weapons and resources, teaming up to perform co-op moves, and helping a partner in distress.
I'm really positively surprised, this being a great offer, and the shipping from Amazon went like a charm.
If you have a younger brother that you see way too little, this is a great way to make him stay over more often. Nothing like zombie-killing to make the family closer.