Honestly, I went into this movie just based on its tags: action, comedy and it delivered what it said it will. I laughed, and I got a good deal of action scenes. There are some plot twists here and there which was nice. Overall, if you want to watch a movie to relax and enjoy and feel good, this is the perfect choice.
I didn't really liked Kim Young Kwang in the only drama I've seen from him (my secret secretary) (completely personal, his acting was good and I liked the show. but I just didn't like the character he played that much) and I think this goofy action type is a better match for him.
I really want to see a second movie with this cast and I think the storyline has the potential for the second movie. And I hope in the second movie we see Lee Sun Bin having a more active role. I feel like her role was a little bit inferior to Kim Young Kwang, and it wasn't very clear whatever she was a rookie or a skilled agent.