Hell, I saw it last night and liked it a lot. I personally could've done without Tom Cruise being Tom Cruise for the 10th movie in a row, but If *I* could overlook it for once I'm sure its not that big of a deal.
I really enjoyed the story however. Even if I was watching it and thinking "This IS a video game." The way the story unravelled itself and the action beats seemed very video game-ish in my opinion. Not that that is a bad thing. I also felt that if this were a TV series spread over a season or 2 the revelations would have been more jaw dropping and mind blowing. While I found the various twists interesting, they were a tad predictable and lumped on top of each other which kind of robbed each one of its full impact I feel. But STILL, I loved the film, I'd give its a solid A.