First of all I found the plot really interesting. It was my first time watching a drama which takes place in North-Korea. I found it really exciting as there was a lot of action, but at the same time there was a worrying and tragic atmosphere that I look for in dramas: for example, the moment when Hoon and his father are about to be killed by north-korean soldiers, or thoses moments when Hoon was struggling with the surgeries he was forced to do, his father's death, his separations with Jae Hee. From the very beginning till Jae Hee and Hoon's separation in Budapest I didn't get bored at all, not even once. I couldn't wait to watch the next episodes! I kept watching the drama everyday but sometimes (even often) I couldn't understand what was happening, and I was asking myself lots of questions, for example: Why was Hoon living in South-Korea, how did he get there? What did exactly happen to Jae Hee during these two years without him? How did Cha Jin Soo do to find her? Why were the politicians still there after the Budapest scene? (I read other reviews and we were all wondering about the same things XD) From my point of view, there were too much people in this drama like the protagonists, politicians, doctors, and second roles (like Bora that I found useless) which caused our lack of comprehension. I mean if the story is originally about doctors so why are there politicians to create a fuss? The story around Jang Seok Joo was pissing me off. But I didn't stop and even found the drama fascinating, as the surgeries looked real, I was really disgusted.. There is also the fact that I LOVED Park Hoon's love for Jae Hee and her love for him. I think their story is very touching, if only love could be that strong in real life *o* (Sorry for those who love Soo Hyun and Hoon's "couple" , I even didn't like Soo Hyun's character, I found her pitiful....sorry :v) I really liked the fact that any of them betrayed the other for another girl/guy. I really loved their scenes (Hooni and Jae Hee) together, but even if they end up together in the end I wasn't really satisfied with the drama's end because it's too fast (from my point of view) and difficult to understand. I mean why did Jae Hee fly to china??!! I also enjoyed some second roles like Han Jae Joon's surgery team (Dr.Keum, Moon, and Kim Chi Gyu) I forgot to tell about Hoon's mother. I found her scenes with Hoon very cute bla bla bla, but why isn't she with him in the end? That's why I found her role a bit useless, I still even don't unsdersatand what happens to her in the final episode... To sum up I really liked this drama even if I'm still struggling to fully understand some scenes and if I'm a bit disappointed by the end I was very pleased with the OST, I always pay a close attention to the music and I'm glad to say that I wasn't disappointed. I think this drama is worth watching at least once in a lifetime :p