I find this site EXTREMELY useful when previewing games before I buy them. If I watch the videos here and don't want to play the game I won't buy the game. If you're still wondering whether to pick it up or not [and I'm not picking sides in this post] watch these videos on Gameanyone

http://www.gameanyone.com/game/PC/9772.html

Just trying to help people out, get a better understanding what you're getting into when you buy the game

They also have a pretty massive library of other games like Crysis, Painkiller, Half life, etc and many platforms including really old ones if you're bored and want to watch videos like i do.