I really enjoyed this but it wasn't because of the plot. It was because of the acting and their adorableness but I recommend this. It was a fun and cute, refreshing drama.

Story: Not bad, I liked it, just not a whole lot. Happy ending and it flowed. I just didn't understand Sungyeol's character and it was kind of cliche..
Acting/Cast: Kim Sae Ron can really act! Woo Hyun was pretty good and so was Sungyeol.
Rewatch Value: It was enjoyable but I wouldn't rewatch this..
Overall: 8/10 I think you should give it a try. It was a sweet drama.