Just downloaded the demo. I thought it would be boring, but it's actually fun. Whoever put this demo together did a good job. It makes me want to play more. The story that is presented to you makes you want to know what and why.
The graphics look really good. Cut-scenes flow fluidly into the action and QTEs. Frame rate is solid. Those videos are crap compared to the real game and look boring.
Gameplay is pretty good. I didn't have much time to mess around with the controls, the game just explodes with action that I didn't have the chance. If you mess up in a QTE the game does a rewind and lets you try it all over again at a set point.
The music is pretty awesome too. Makes the game intense.
My favorite part of the demo was running/free falling down the building while fighting. To slow yourself down, you plant your sword into the building.













