When I started watching it, I was watching it for Song Joong-Ki, plus, I love revenge dramas! The whole show was quite fun to watch, although there were many times when holes in the plot were left uncovered. The ending was also not as satisfying as I had wanted. Despite there being some things that simply don't make sense and some people that didn't contribute much to the story (namely Jin Do Jun's girlfriend), I'm not too regretful that I spent 16 hours of my life watching this.