Insanely good, wasn't exactly the scariest (though I jumped a little when my light exploded 2 times :) ) but had a really nice atmosphere. My probably biggest complaint is the way reviving works - after rescuing and reviving, if you want to play the character I rescued I have to go to room with water, click the button, drown, select in menu character I rescued and then go back to water room to help the guy I drowned, go to computer to revive him and then I can finally continue with story.