Super tempted to buy it myself. A buddy said he was gonna pick it up off Steam last night. Just waiting for him to tell me how it is as we have a lot of the same taste in single player games. If he gives me the thumbs up, I'll buy it by the end of the week.
Its awesome.. First sit down i was playing for 6 hours and only completed the prolog and still on the first chapter.. Tons of stuff.. Very in depth.. Dont feel guided too much.. But still enough. Amazing graphics. And its open but when its not it gives the illusion of wide open very well.