I recommend watching this movie absolutely!
The plot is simple, dynamic, captivating and fun!! Overall the movie is satisfying and leaves you with a smile especially for the amazing collaboration between Park Seo Joon and Kang Ha Neul! I laughed in some scenes only because of their expressions and their way of doing things, they interpreted the character well! They are a really great team, a perfect bromance! Their friendship seems real and not acting!
I think this gives a big score to the movie! In addition there are also serious, sad and scary scenes with regards to villains.
It's a very good movie and I would like to see another movie or a drama with them!