I'm about a few hours into the game, but I figured it's enough to give a moderately accurate review. Some of you weren't too happy with my Portal 2 review, so I'll keep this one spoiler-free.
The strongest feature of the game has to be the stunning visuals. Probably some of the best graphics I've seen to date. Gorgeous environments, lush scenery, and magnificent backdrops all make you stop and "smell the roses" when you're playing. There is much to look at. And what was really cool was how much you can explore the levels. After you killed every bad guy in an area, it's hard not to go around and see what you may have missed. You'll truly appreciate all the hard work and care that went to into level design.
There were some annoying bugs, and poor AI made it quite annoying at times. The enemies either spotted you from miles away, which then voided your stealth approach, or they stare right at you and don't do anything. You also have the ability to pick up any item and toss it. It can serve as a distraction to enemies, but I wish your throw would be...ahem...manlier. I tried my best to calculate an accurate trajectory, but the throw never goes far enough. And there's a noticeable lag between the button press and the throw. The game also takes a couple hours to get going, but it's worth sticking around for.
Crysis 2 also has a strong competitive multilayer. I haven't played much of it, but it's really fun. The maps are incredible, and leveling up is rewarding. I definitely recommend Crysis 2 for its lasting appeal and quality gameplay.
This is a video of me turning on a TV, then shooting it and watching it dance as sparks fly.