This drama introduced me to Ji Chang-Wook and he quickly became my favorite actor! The storytelling is tightly knit and leaves no room for major holes. The villain is bounced back and forth, it's not the basic bad guy, rather someone with flaws that make them overall human. The emotion that PMY and JCW portrayed was fantastic, and I'd say one of the best couples in a drama series ever! Swoony action scenes are heavily incorporated, which was great! Also Hacker Ahjumma is probably my favorite character outside of the main two, Kim Mi-Kyung did an amazing job!