This game offers an incredible experience for those who are looking for a creepy, terrifying, satisfying action/adventure game. I bought this on a whim and wasn't expecting to have such an incredible time with Dead Space 2.
The sheer amount of detail put into all of the environments makes it feel so real, and compelled me to explore and keep playing.
The story is surprsingly deep and compelling, and the voice acting is superb. It creates believable and interesting characters that truly grabbed me and kept me interested to find out what happens.
Like the voice acting, the sound design is also impeccable. I recommend playing with good earphones; you'll be able to hear enemies sneaking up on you in the creepiest way possible.
Rarely have I found encounters that aren't tense. Every moment of combat is strenuous and frightening.
As a fan of the first game, I was skeptacle of it's sequel, worrying that they would sacrifice the horror in favor of more action, but as I said, every moment of action in this game is rattling, I frequently find myself (or Isaac, rather) standing amongst the carnage to regain my composure.
I can't recommend Dead Space 2 enough for those looking for a memorable experience. Playing this 3 years after it released, it holds up remarkably against the products that have came since. Very wise investment for only $20
EDIT: Just beat the game, I wrote this review a couple hours away from the ending. I must say that this game confirmed my feelings on it. It's an incredible experience that I simply can't recommend enough to other gamers. 5/5