Yeah, from the demo, camera and controls seemed the weakest (I had to fidget around to make sure I was clicking the right place for cover).
I also had the biggest scare in my life when I moved my promoted unit inches from the enemy and pushed fire only to be told I was out of ammo. The next turn, the alien pointed and hit a wounding, but non-fatal shot.
I'm unfortunately in law school, which is the worst of both worlds when it comes to free time. I'll try to check it out at some point, though.