You are basically a detective. Some people may say it gets repetitive, but I enjoyed the story. I loved this game. I suggest trying it, especially if its at around $20.
Not really a classic game, but I just recently went through my games to see what I wanted to sell, and I came across my Black Ops. I am again addicted to it.
Good point. It is best to have some background knowledge of a game you are going to buy, rather than taking a risk of spending $60 for a piece of crap.
I tried the demo, and to be honest, I expected more with all the hype it got. I'm not saying it is bad, but it just doesn't appeal to me much, thus why I quit the demo halfway through.