So I got Bioshock.

By that I don't mean Bioshock 2. I buy most games on a lag of about a year to a year and a half because I'm a cheap bastard. I think I'm a little more than a quarter of the way through, I'm trying to build the machine to save the trees at the moment. I feel like that could be a spoiler if it weren't so vague. So, what'd you guys think about Bioshock, or Bioshock 2?

I played a little bit of Bioshock and it was great. Many attacks and items. But the ambience is what makes it great. However, I only own number 2 for the PS3. I played the first game at a friend's house.