I thought the acting and story was good... up until the last few episodes, at which point a few things derailed it:

The singer from Akdong Musician who was working as a convenience store part-timer learning to study to become a police officer - Her appearances were kind of the 'b-plot', until her storyline arc suddenly changed as she 'started singing' randomly while walking home. It felt unnatural and kind of cringe. Yeah, I get it, she's a famous singer, but having her incorporate it seemed forced and more like an advert.

I can ignore that though, what I disliked more was the ending where Hwi-oh 'won back' Minkyung with what appeared to be an act of aggression. It wasn't what it seemed, but something just felt super off about it, much of Minkyungs concerns weren't really addressed but she did an almost 180, and they got back together.

Also, it was pretty unclear where she suddenly vanished to (before she came back)... was it Mongolia?

Anyway I would say the first 9 or so episodes were great, but then it kind of fell off a cliff. It really felt as though they were struggling to figure out how to wrap things up, and went in a bit of a weird direction.

Not a waste of time, not terrible, good.. but thats a shame because it could have been really good