Well, I finally played the demo. Took 50 hours to download (throttled to 64k).
So I was a bit disappointed by it's short length.
The graphics are very good, though not in a league of their own as some believe.
The excellent use of postprocessing contributes a lot to their visual impact, and hides the nasties that usually give a video game away.
The controls are definitely an issue, on default they are ridiculously slow, it's like turning your thumbstick through molasses, and then it accelerates rapidly.
That and the massive amounts of motion blur, almost made me motion sick.
Until I finally upped the sensitvity to the second highest setting, which made things more bearable. I don't mind the weight so much, but they should take out the acceleration, it just make's things annoying.
The button layout was a bit unconventional, but worked well enough (without being exceptional) once you got used to it. The 1st person cover system is well done, though basically identical to BIA:HH except in first person.
Another thing I noticed with regards to controls, was the absence of vibration during gameplay? Is this something absent in the demo?
The AI was also pretty smart, they borrow a few COD4 throw a grenade where you're hiding tricks, but they do so far less often and the fact that they don't respawn infinitely, makes them much less annoying. Even in my first playthrough I was getting headshots against half the enemies, visual cues like their red eyes and the helmets popping off makes it easier. One thing slightly annoying was the death animations, too many enemies twist around in the 'ballet of death' way for my liking, can look a but silly.
And I'm not sure about the CS style weapon inventory of one main arm/ one side arm. I prefer the choice of two guns, it adds more depth to the gameplay. Perhaps they could have balanced it by making you run slower, and having a realistic swap time (ie. lengthy by video game standards) between weapons, when you are carrying two main arms.
I will have to play again to assess these claims of lag, I'm not sure whether the lag is perceived (due to the 'weight' and weapon animations/blur) rather than actual. Though I think there is some, which is compounded slightly by the other factors mentioned. Does the deferred rendering method they're using have any inherent response lag?
At this stage I'm wondering if the controls are in their final form, because they would make for a rather 'interesting' multiplayer experience as they are now.