After playing the demo 4 times, I can safely say that this game has lived up to my expectations. In terms of graphics, the game is simply amazing, that's easy enough to tell from just looking at screenshots or videos of the game, but there was nothing quite like seeing it on my 32" HDTV, truly breathtaking.
I wasn't sure how good the gameplay was gonna be just by looking at vids however, sure it looked fast-paced and action heavy, but you can't get what it truly feels like to be playing the game just by looking at it. Thankfully the game plays just as good as it looks, I have never played an FPS that is as satisfying as this. The enemy AI reacts so realistically to the way you shoot them that no other game feels quite like it.
The controls can take time to get used to i.e. you have to hold down L2 to stay in cover, then use the analogue stick to peer out and shoot the enemy, plus press another button (depending on what contol scheme you use) to aim down the sight. But everything feels smooth once you've got used to them. Another thing you'll notice is that you're character feels quite a bit heavier to move than in other FPS's like COD, and this adds to the feeling of realism in the game, as that is how you'd move if you were loaded down with armour and a gun.
So overall this is an amazing demo and I can't wait to get my hands on the game. Roll on 27th.
If you have played the demo let me know what you thought of it.