This is by far the best K-drama that I've watched. There are so many reasons to love this series - the main casts' chemistry and their friendship, the love lines (IkSong especially), the patients' stories, the music. I could go on and on but I guess you just have to see it for yourselves. I promise you will never be disappointed. It is so easy to love the characters and by the end of the show, you would feel like you are one of their friends and you are part of the story. It had a healing effect on me. Highly recommended!