I'll make the review short..
The majority of what is wrong with this show stems from the fact that that the show is too long for its own good. Each episode is almost 70 - 90 minutes in runtime. It being a netflix show, i dont know why they had to stretch each episode to reach this runtime. The series would have been much better if the episode count was reduced to 16 or the by reducing the episode length.
To fill the runtime there are many unnecessary jokes and setups for comedy which works sometimes but not nearly enough. Whatever emotional aspects or urgency the story tries to bring fizzles out in the end due to this..
I was on board with the romance aspect of the story, i think the charm of the characters and actors worked well and the chemistry was really good. The over the top nature of the story never bothered me (When was Korean Dramas not over the top?).
Story was not perfect dont get me wrong but still i was not bored by it but at the same time i wont be rewatching it any time soon...