Tried to play the demo at the expo, but realising it was a hand-holding thing I lost patience very quickly because it shows you where you have to make your men run to specifically, and I couln't finish the demo because I really wanted to just play some of the game rather than be led through it. I did go back to it to have another go on the following day, and made it a bit further through, but the demo is clearly just trying to introduce you to as many of the mechanics as it can in a short space of time. I can understand that this is going to be important to the people who (spit) haven't played a turn-based XCom before.
This is not a complaint about the game, however, because I watched a great deal of the multiplayer, and it looks really really good - I was fortunate not to have any unknown units spoiled for me, and it really did look like a digital incarnation of a tabletop game. It was a weird thing to spectate because you could see both screens right next to each other, but the mechanics look very interesting.
The PC version looks lovely, and the 360 version also looks really slick - it seemed very smooth, and while there were obviously some concessions in the super-showy-graphicy department, it was very easy on the eye, and using a controller instead of a mouse, as I still do when playing the original UFO, actually seems to have been implemented really well. In fact the criticisms of the controls seemed to be more pointed at the PC version, where despite what Firaxis have been saying about it having a unique UI and control scheme, some people felt might have still been a little console-esque.
Regardless of all that, I am now even more excited about it than I was before, and it is indeed going to be a pretty long fortnight waiting for it.