I played the demo. Basically the first "level" with all the characters. Leons was the most fun by far. But, like everyone is saying, it is too arcade Gears of War now. It isn't so much the over the shoulder camera or anything like that, it is the lack of suspense....the lack of strategy....the throw everything in your face style action. Too much ammo, inventory basically gone and auto save points. If it was another game, say "zombies ate my neighbors 2012" it wouldn't be a bad game....but this isn't RE.
I know games need to evolve. But this isn't an evolution, it is a complete removal of everything that made Resident Evil what it was. You play the first couple of games, and you ran out of ammo a lot. You had to run. Hunters could kill you by ripping your head off from across the room while you were at full health. Now you just shot shot shot shot shot shot.