STORY: Well, the story itself was really good, I mean there were a few plot holes I didn't understand but what I like with this is drama is the supernatural/fantasy element, I am such a sucker for those type of genre. It also helps that the cinematography was really beautiful, I absolutely loved it!
ACTING/CASTING: well, I think one of the reasons why this show was a success was most def because of Gong Yoo and Lee Dong Wook, their bromance was more romantic than their female leads, and their dynamics was superb, not to mention the acting and the comedic scenes this two makes, hahha!
MUSIC: one of the highlights of this show was their music - it was soooo on point- I have every song on my phone to listen to from time to time. It also shows that the music was effective because whenever I think of Sunny and Grimreaper the song that automatically plays on my mind was I Miss you by Soyou (this song was my favorite) or if the bride and the goblin it always was ( Beautiful Life or I will come to you like the first snow) that's how beautiful the OST of this drama is!
REWATCH VALUE: I would def rewatch this show again just because I love the interaction between Lee Dong Wook and Gong Yoo hahahhaha
OVERALL: this was a great watch indeed, I was just glad I waited weeks for this show to finish before I watched it because damn I would have pulled my hair out waiting for the damn episode every week!!!