Just watched it, thought it was pretty good and liked the story. I also like the production quality. Though, by episode 8 I had figured out the “mystery”. Though I would have like some more meat on the relations and backstory on certain characters. (Spoilers ->) However, I found the story-line intriguing and how the past events were linked to the present events on going and the different characters relationship with the story arc. Especially the watching DPRK - Son Ye Rim connection play out, even though it was by mid series obvious already.