I gave it 10/10 I have just finish watching Kill Me, Heal Me for the 5th time. I have seen Ji Sung in several different dramas but this is my all time favorite. The chemistry between him, Hwang Jung Eum and Park Seo Joon was awesome. There is not a boring moment. I will tell you this you will laugh and you will cry. There will be times you will be mad. Get box of Kleenex and enjoy the drama like I have several times. The music is awesome..