Should we start with the story ?
It was great, refreshing and surprising in many ways! Who can deny that the mono probe relationship was not great, refreshing and surprising ?

The acting/cast ? Amazing ! I have no complain about the cast, the cast is completely made for this drama. The main actors have done a fantastic job!

The music was absolutely wonderful, as expected, a bl kdrama is still a kdrama with quality OSTs.

The rewatch value ? Haha, I've rewatched it many times already, and I will certainly rewatch it!

So overall, a good 10 because why not ?