I played it and LOVED IT. It's dark, gorgeous environments. The combat system is very similar to God of War, except the big difference is the combos you learn over the time come in handy A LOT unlike God of War where you will learn one skill but will rarely use it like 2 or 3 times during the whole game. Here however, once you learn a new skill it's gonna come in handy.
Btw, PATRICK STEWART FTW! The dialogue ain't too shabby either.
Biggest downside, is those puzzle they mention don't even appear in the demo. So I was kind of disappointed and fearful of that when I get the main game.