Looking back I was such a fan of this drama! I watched every single episode with excitement, but this was at 2014. I recently rewatched it, because I forgot I actually saw this and.. I know, maybe it's because I've already seen The Heirs, but now looking at it, I think it was the hype and not the actual drama that gave it a place in the top dramas list in the first place.
When it first came out, this type of story was in every drama. Now.. I think the same. It's banal and boring, but the cast either makes the story interesting or not, and in this case it was what saved this drama. The cast was on point, Woobin's role was fitting for him, Shinhye's too, supporting roles were in suitable places which made it interesting to watch. Yeah, the music was dramatic and in some scenes very unnecessary, but I think it suits dramas in that time, when "drama overload" theme was going on and they 360ied on every frkn kiss or accidental touch :D Now it;s a bit better, but I would love to see remake in the future of this drama with the same cast.
All in all, back then I loved it, now it's just cringy to watch it.