This was a hard movie to watch due to the subject matter. The evil in the world is never easy to watch. That said, I really enjoyed the acting and the action. Kim Woo Bin does such a fine job with micro-expressions, and I really liked the development of his character. There was a possibility of him going down a certain path, and I'm glad they didn't take that direction. Also, thank you for not trying to add in romance. (though I'd love to see him in a romance!)

I thought that the action sequences were very well-done.

Personally, I was glad this was a movie and not a series. It got straight to the point without wasting time.