Story: Wow, the story was like a breath of fresh air. It's not common nor predictable and I like the thought that about a hot secret agent or whatever protecting all day round. I mean? why not?!
Acting/Cast: Come on! This is the first main reason why I watched this show because of Ji Chang Wook! and it helps too that Park Min Young was a great actress and they do have a lot of chemistry together.
Music: It has a great OST! I have it on my phone to listen to whenever I'm bored or something.
Re-watch value: Well? what can I say, it's a perfect five for me, I re-watched this drama like a countless times since the first time I've watched this.
Overall: This was a great watch to be honest and I was never bored in any of the episodes and it was funny and romantic too.