Well after 3.5 hours play last night, I must say I'm impressed so far.
Still going through the basics (just learnt paradigm shift). The story has already opened up and took a twist so I'm still engaged with it

Fight scenes are excellent, cut scenes are of movie standard.
Only thing I'm not sure on at the moment is the camera controls (although I havent played with the settings to modify the camera yet)
Not played enough to really comment on the linearality of it as a whole, but as said I'm still in the learning phase of the game, and the one direction approach enables you to focus on the learning aspect to begin with

. Just need to see what happens further in when I've 'learnt' the game.