First of all I'd like to say that the game has good points and bad points. The good points for me are the controls, they're tight and really easy to pick up. Also the graphics and lighting effects are excellent, they've really tried to make the game atmospheric and abit dark which was one of the reasons why I bought it.
The game was abit of a let down - a friend of mine completed it and gave it rave reviews so I was keen to get my hands on it. The game must have all of 5 different enemies, you just shoot the same guys over and over again so I really did start to get bored quite quick - this can also be said for the environments, it's one thing to try and make them abit dark and spooky but when the levels are virtually all the same, again, it gets boring very quick. It also isn't scary at all, I was hoping for something abit like DOOM 3 which could be really unsettling at times, but this wasn't at all. It's also just your bog standard FPS that does a "slow mo" effect and that's about it. I guess my main complaint is that it tries to be something it's not.
So, if you're looking for just a standard FPS with abit of blood thrown in, then this could be for you, if however, you're looking for something different with a good story then this will disappoint you.