I know this is only a demo but I'm honestly not that impressed. I didn't like the combat it fealt dumbed down, is there more than 1 hitbox? The blood effect is terrible, it's not at all realistic and well looks a bit silly for a horror game.
Everything is of course heavily scripted ala half life. I really don't see what is supposed to be amazing, maybe the storyline is really deep but I think I already know whats going to happen.
I was honestly expecting something with RPG elements, but i fail to see where the RPG stuff is? Deus ex had a decent RPG element with body upgrades.
The graphics are nice but nothing amazing, character animation is pretty standard for an fps type game.
Overall it feels and looks like a console shooter and not a Pc shooter, still its probably the best single player fps game out for a long time, considering theres 0 competition.