Usually you don't see the big sites have much room in their reviews of big title games, but Prey is an exception. Check out the reviews for GameSpot and IGN:
http://www.gamespot.com/pc/action/prey/review.html?sid=6153774 (http://www.gamespot.com/pc/action/prey/review.html?sid=6153774)
http://pc.ign.com/articles/717/717800p1.html (http://pc.ign.com/articles/717/717800p1.html)
Very interesting as well. Personally i think im in the middle of the 2, maybe in the 8.0 range.
Wow. I watched the IGN "Video Review": Props for a good story, voice acting, creative weaponry, and of course the uniqueness in the gravity and the "what happens when you die" question.
Based on that I'm perhaps 60% inclined to actually download + try the demo... And take into consideration I have so little time for gaming :o