The acting was solid in this. Gong Yoo's portrayal of Kim Shin was excellently done, especially in the finale. Deep emotions yet not emo throughout. Second lead relationship definitely more ship-worthy than the first lead relationship in this drama. To me the story dragged, the chemistry was quietly simmering throughout in a beautifully shot drama. Rather than situational conflicts, the drama was more about character interactions so relied more heavily on proper acting. Fortunately, the leads were well-cast and met those expectations. Had to force myself to finish this one. To me slightly overrated but still a good show and worth watching if you have time on your hands.