Trust me, I havent even opened the manual and learned everything during the first 2 hours. The tutorial tips & hints you get during the play explaing everything.
EDIT:
Here, check these 2 reviews. Gives you abit better view on it. The IGN review mentions load times & crash issues, but I think the review has been done pre 1.2 patch, as my load times are quick and have had no crashes on my ~20hr game.
IGN
http://vids.myspace.com/index.cfm?fu...deoID=21286562
Gametrailers
http://www.gametrailers.com/player/28558.html?type=flv