This was all set up to be one of my most favorite dramas ever! So how did it only make a final overall of 8?

Story (7.5):
I'll start with that I really enjoyed the first half more than the second half, even though the blossoming relationship was really great to see and there was great chemistry between the actors that didn't show up as much in the first half.
However, there were just enough overly ridiculous elements to this drama that it just couldn't get the 10 I so wanted to give to it after the first few episodes.
The main reasons include: stupid gangsters, stupid police, stupid "professional" workers, stupid comedy, stupid monk, stupid jokes...
The other reasons include: unnecessary gangsters, unnecessary "professional" workers, unnecessary stupid comedy, entirely unnecessary monk, unnecessary stupid jokes... And too little Ji Soo (only kind of kidding).
I enjoyed some of the comedy and loved to laugh at this drama, but it just got more and more ridiculous.
I don't want to bash on this drama too much because I really, really enjoyed it especially every scene that had: Park Bo Young, Park Hyung Shik, Ji Soo; and also didn't have: Kim Won Hae, Im Won Hee.
However, the final deal breaker was the final scene of the final episode, which episode I really enjoyed on so many levels and really didn't enjoy on some other levels.
It was great to see some last scenes with a sadly 2d but amazingly acted villain, and the result of relationship between mains was just the cherry on top... But then they had to go in and throw that last scene in which you see some irresponsibility with some mumbo jumbo about the world which I admit looked cool, but the more I thought about it the more I felt it didn't fit with the character...
*SIGH* That probably took away at least 0.5 off of my final score.

Acting/Cast (10):
Park Bo Young and Park Hyung Shik were aMAzing together, and having Ji Soo in there was just a great plus. The rest of the casting was great too, especially from the villain! and even from the overly ridiculous characters as they played it how they should have, even if I didn't exactly enjoy it all.

Music (7.5):
I guess I should also mention the music... It wasn't anything spectacular that I loved; the Love you love you song was fine and actually a really decent song, but nothing unique. Some people may like the Trouble song too, but not my cup of tea.

Rewatch Value (8.0):
For rewatch... I could re-watch a lot of the scenes over and over, and in truth I watched the majority of the drama twice, one raw and once with subs; but I think most of my rewatching will only be done on the first half, especially if it's full episodes.

Overall (8.0):
Wish I could have given it a 10, but had enough filler comedy I just couldn't deal. Still a great drama and recommended!