I love this game buy it if you dont want to see your friends for a month
Installed easy enough, looks stunning and runs as smooth as a moose. I loved the way it starts (you get born) and follows you through childhood until your big enough for the outside world. When you get out theres lots to do and see, find and explore (Abandoned supermarkets, factorys, towns, cities plus all the major landmarks (or whats left of them) as well as some humorous choices (wheither or not to dissarm the towns nuclear bomb or activate it). If you find it too easy or hard you can adjust the differeculty at any time.
There's lots of kit and weapons to pickup and specialise in, you can even make your own weapons once you find the schematics (normally one per town, buy them in the shop). Again they've given you a choice between good or evil and depending how your karma level is depends on how different people react to you, some will run, some my want to be your friend. The games just plays on and on theres also extra content being released after chrismas.
The only real downside on this type of game as it is only single player so if your a major online COD4 player this type of game may not be for you.