I'm a huge fan of the Bioshock series. So when I started playing this one I had extremely high hopes. And let's be honest, the game doesn't live up to the hype it generate. But to be fair, games rarely live up to their hype. It doesn't meet the claim of revolutionizing the series. In fact, it does play rather identically to the previous games in a way.
This isn't a bad thing though. The controls are usually spot on. Even on 'normal', or as they call it here 'medium' difficulty the game is a challenge. The game's rather fun to play too. The new mechanics add some interesting new stratagies as well to help keep things fresh.
In previous games the story didn't quite live up to the rest of the game, but didn't detract either. This time around the story is much more compelling. It kept me guessing the entire time. And even once I thought I finally had everything figured out, it throws one last curve ball.
Really, the only complaint I really have with the game is that ambushing from the sky rails is rather clunky.