I'll do my review based on the ratings.

1. Story
— The story is basically about pain. What makes Doctor John different is that its not the usual setup on any medical dramas that I've watched so far. The illness that they mention throughout the drama is new to me. Never heard about it. The drama shows what pain really means. What I felt it lack is the euthanasia part and also about Siyoung's dad. I think they quite rushed it because there's not much episode left.

2. Acting/Cast
— The acting is superb. That's why I gave it 10 out of 10. Especially the two leads, Jisung and Lee Seyoung. They pulled it off. No doubt, Jisung is really a great actor. His eyes is really beautiful. The way he looks to Seyoung is making me crazy. Lol. For Seyoung, this is my first time watching her and she did great. The crying scenes are really good. Im thinking how she cried so fast on those scenes. The chemistry between the two leads are sooooo good. Didnt expect that it will be like this good. The Matong Team, they are hilarious. Especially the last two episodes. You'll know what I mean if you already watched this.

3. Music
— I think anyone will agree that the ost's of these drama is great. Although most of them are in english but every song is suited to those scenes. I recommend you to listen Star by Minseo ????.

4. Rewatch Value
— I'll probably rewatch this drama again after I finish rewatching one of my fave drama.

5. Overall
— To sum it up, this drama is worth watching for. They'll make you cry and even makes you realize some things. For those who are in doubt watching it, dont hesitate to watch this drama, you're not going to regret it.