I had heard a lot about this drama when it first aired the first episodes, but I usually wait until all episodes are out and that was what I did time as well.
It is not often that I watch the trailer or read the description of the drama, I didn't this time eihter.
But there are a few things I do want to know, and I do scim through some recensations.

I just wanted to share something I would have liked to know about this drama.
That would have made my experience watching it more enioyable.
I feel like the information I found about the "romance" in the drama was misleading and it made me annoyed at times.
It had a lot of potential, it could have been really good, but now I feel pretty disappointed when I finished it.
I think there was great chemistry, there were a few teasers, but the season was 20 episodes long and there was only 2 kiss scenes.
So don't go in to this drama expecting romance because that is not what it's about at all.

(I truly liked the characters/the actors, it was entertaining)
(I haven't ever rewatched a drama yet, so that rating has nothing to do with the k-drama itself)