Booted up last night just to see if it was actually working. For me at least the Steam overlay wasn't coming up and my overclocks weren't being applied (prob had something else running in the background though...). I literally just sat through the intro cinematic and walked around for a few seconds before quitting though
Really looking forward to playing this tonight, never bothered to finish 2 as I was quite disappointed with it (...that and it had no cloud saves?
), but this seems to be shaping up to be the "true" sequel.