Okay, so I did just absolutely love this drama. I honestly can't find one fault in it, it was funny, romantic, sad at times but happy at the end. The acting was so good, each cast member was perfect for their role and the relationship between the characters felt so real. When I was watching it for the first time I actually had a hard time predicting the end, which I enjoyed as most dramas have such a predictable ending it's boring. The ending to this drama was perfect, though sad at first (yes I cried), the actual ending was so worthwhile and sweet and tied everything up perfectly. I would not be against a season 2 just to see them all happy together...
The only reason I gave rewatch value a 9 was because you just can't get the same emotions from it when you watch it again. That being said I have watched this drama multiple times and enjoyed it every time, but I could get as emotional to the story knowing the ending, not that that's really a bad thing. It's just, if I could, I would erase my memory to rewatch the drama for the first time again.
One thing is if you enjoyed this I would recommend Hotel Del Luna (or if you enjoyed Hotel Del Luna watch this) as they have very similar vibes in my opinion.