I started watching because of the high praises from other reviewers and because of Ji Chang Wook (now one of my favorite actors). I really liked the way they executed the concept of the drama. The action scenes where very good, the plot was full of twists the tension was always there. I fully recommend this drama even though I found the cinematography slightly lacking. Considering the drama is from 2014 it is still good but I am quite the sucker for crispy clean shots. This was the first drama I watched of both Park Min Young and Ji Chang Wook and I am looking forward to more.