I tried the demo, but I'm afraid (no pun intended) that I found the scares/lighting/etc. to be annoying rather than scary; I was far more disturbed by the likes of the Cradle from Thief: Deadly Shadows. Then again, F.E.A.R.'s method is roughly how Dead Space's "horror" worked (albeit with far more monsters jumping out of air ducts) and some people actually liked that game.
Also, just like Assassin's Creed it only supports 16:9 display resolutions. Any other resolution gets letterboxed. This is unacceptable.
Also, it's an FPS but I can't lean. What?