Likes
1. One of the most satisfying ending i've watched in recent years. I was crying and smiling in the last two episodes.
2. The strongest part of the drama is the close relationship between the father Yi Chan and son Eun Gyeol in whatever timeline they were in. Pre time slip, during time slip and post time slip.
3. High school love story of Han Yi Chan and Yoon Chung Ah was so cute.
4. The Watermelon Sugar band and the band mates. Plus the cameos as adult versions. And their songs.
5. Eun Gyeol and Chung Ah didnt have a lot of scenes because Eu Gyeol was always with Yichan or Eunyu but he did best thing to his mom, which is to get rid of the evil stepmom and let her be free to live her life.

Dislikes
1. I didnt like Seol Inah's character. I dont know if it was the actress or the character itself. But she kinda grew on me in the end. Im curious to find out what happened when she wentback to the present. Is her family still together? Did Segyeong become happier?
2. I think we needed an extended 15-20 mins to see what other changes happened to the present or maybe i just couldnt believe it was all over.

Rating: 9/10