The game looks very visually stunning and is very fun to play.
The story gives the environment a great atmosphere and tone. The animations were great as well. I like the flashlight being our visibility mechanism, making you feel very paranoid throughout. The on-screen instructions are also a nice touch to help us with controls.
I think the addition of a map/mini-map to help with navigation would be nice, as I am a very directionally challenged person.
Overall, amazing product.