So I caved in and had a quick try at the demo (only the Earth mission, though), and it's started to panic me slightly due to the following:
1). Low resolution "skins" - looking at Anderson's uniform, I noticed that it seemed very low resolution; I'm hoping that was done to keep size down on the demo, and that it'll be back to super-duper-high res in the full title.
2). Poor lip-sync - watching them talk was a little bit awkward; did anyone else notice how the mouths just seemed to move quickly in a general approximation of what they were saying, rather than the brilliant voice-lip effect in the previous titles. PLEASE let this have been fixed in the full title!
3). Reaper movement - During the cut-scene where the Admiralty Board see a Reaper land and attack, the movement of the Reaper seemed really naff! It just suddenly appeared and shooted (yes, shooted). Rather than witnessing graceful movement that caused a heart-stopping sense of terror, I giggled nervously - is this really what the animations will be like in game? Again, I'm hoping that it was just a bit of a pre-full version bug that's already been fixed, but...I still worry.
Did anyone else notice these, or have anything else to add? Maybe you disagree with what I've said, or have an explanation for them. Thoughts and comments welcome.