Ghost Protocol is a lot of fun. A large scope, lots of humor, tons of gadgets, a villain out to reboot the world by instigating nuclear war. It really brings to mind The Spy Who Loved Me, there are definitely similarities. There was another cool Bondian touch in the form of a female assassin who works for diamonds. She was actually much more interesting to me than the main villain, who is pretty much a non-entity. Brad Bird did a great job directing and the cinematography by Robert Elswit is fantastic.
I did feel like it could've been trimmed a bit here and there, and the subplot about what happened between this and 3 felt unnecessary to me, but those aren't big issues. I was very glad that there was finally no IMF traitors... Even if IMF as a whole was disavowed, at least none of them are actually guilty. Next time, I'm hoping for no traitors and no disavowals.