I am not a gamer so I didn't really play the demo once it started. Little problem with not knowing the key mapping.

I tried the Dead Space 2 demo. Everything seemed to work fine. During the prolog, Comcast dropped my bandwidth, and the playback glitched, but the server seemed to adjust and carry on. That might have sucked if I'd been actually gaming and gotten slagged during the glitch.

Edit: The survey was a bit fun. One of the questions asked me to admit that I filled in required personal data with garbage to avoid entering personal data. I did so admit. The at the end, the survey required an email address, I of course put in spam@gmail.com