Wow. Add me to the few people here who are surprised so many people are liking this game. I totally did not, but as someone pointed out earlier, it is pretty easy to get all the achievements/trophies.
If you don't like hand-to-hand combat games, then stay away. Here's one of the things I hated about it: you have a gun in your hand, an enemy comes up to you and punches you, your character automatically puts his gun away and puts up his arms in a boxing stance -- like, WTF. If I have a loaded gun in my hand and some dude wants to get all up in my face, I'm going to pump some lead into his face. I'm not going to put my gun away. Retarded.
Edit: If you do get this game, make sure you are at full attention and have your hands on the controller at all times during cutscenes. Sometimes you think it's a generic cutscene that will end this section of the game, but no. It's to give you a false sense of security, then the cutscene ends, and the other dude kills you with one punch/kick/whatever if you're not paying attention. Those are the only times I have died. Pissed me off as much as the deadly accurate grenades in World at War cuz it's freakin unfair. There's no way on your first playthrough you would ever have known what to do.