Despite not having many good reviews, I wanted to try this, because the plot sounded very interesting. And of course, there's Gong Yoo. And it was pretty good. The plot was interesting. The way the story plays out is good. The music was super good. And another element that added to the beauty of the drama are the frames of childhood that most of the episodes ended with. It really underscored the importance of the relationship Ha Neul and Seo Gun shared. The main leads are great. The side characters are sometimes annoying, esp the second female lead who starts off as the typical 'hang on his shirt sleeves and pretend he is in love with you' drama-land girl. There are probably two things I wish were different: Gong Yoo's character is of a more serious and burdened frame of mind. So basically, I missed seeing his smile. Having Gong Yoo as your lead and not having him smile? That wasn't cool. And, then the ending- which isn't bad. Just okay. They could have given us some more. (No smile there also) Besides these, this is a good drama with two strong leads and a beautiful soundtrack.