This has to be one of my best k-dramas. An Absolute Masterpiece! Everything about this drama is so remarkably wonderful. The characters, music, direction, literally Everything!! As someone who hated Mondays, never did I wait for them as much as I did for the 8 weeks the drama aired. And I don't regret dying of curiosity over and over again every week.

Plot - The story is deep. It's philosophical and hella beautiful. Some of the dialogues were so well written. The plotline might seem complicated at times but it'll eventually make sense. Although, some people did say the first half was interesting and that the plot went down in the later episodes *spoiler alert* especially about how the couple got together, separated, and again got back together, etc., and in my opinion, it was to show that no matter what happened they were destined to be together. Also, about the episodes which apparently were 'draggy' and 'boring', I admit the plot went downhill after the 8th episode but I'd prefer to see it as just another flaw for this almost perfect drama.
So if you think of dropping the show halfway through, Don't! Give it some time and I'm sure you'll enjoy and love it as much as I do.

Characters - I think the crew did an amazing job with the casting because I can't imagine anyone else playing the characters. Especially Seo In Guk. Honestly, he was Amazing! Nobody could have probably pulled off the character of Doom/Myul Mang better than him. Everybody was perfectly cast. They really played their parts so well. And the visuals, *chef's kiss*. Literally! Shoutout to the entire cast. Kudos to 'em all!
The chemistry between Myul Mang and Dong Kyung is so powerful!! I seriously need more of Park Bo Young and Seo In Guk. Maybe another drama, movie, or even a commercial, just anything. I could feel their chemistry oozing out from the screen. Both have had very good chemistry with their previous co-stars but these two together were literally something else.
Psst... If you can't seem to get enough of the two, you should definitely check out the behind-the-scenes posted on tvN's official YouTube channel. It's not sufficient, but it should satisfy the need a little. ; )

Music - Ah! The OSTs. I'm in love with every single of them. This is one of those dramas where all the soundtracks are sweet and melodious. The lyrics are heartfelt and deep, and the vocals beautiful but intense.

The graphics especially blew my mind. *Minor spoiler alert* Some scenes take place in Myul Mang's garden. These scenes were particularly fascinating because of the impressive graphics.
To wrap it up, if you're looking for something interesting to watch, don't let this one go. I already said it before but if you're on the verge of dropping it, please don't. Give it a second thought and continue watching it. Trust me, you're gonna enjoy it and you probably won't regret giving this a shot.
Happy Viewing!