I LOVED IT SO MUCH!
BTW: I never read the book, so this review is based on the movie only.
It was the perfect CIA thriller film I was looking for. The relationship between Six - played by Gosling - and the characters he's surrounded by (especially Claire) was beautifully done. Evans played Lloyd so well that you loved to hate him. Not that I was expecting anything different from him.
The fighting was terrific, the action scenes incredible, the soundtrack was great, and I loved the filming technique. This movie was just really awesome all around. Plus, there was some female bada**ery which I always appreciate.
The ending was bittersweet, but I think it fits the mood of the movie. I don't have any complaints besides a couple of what I thought were cheesy scenes, but I will be watching this one again!