I only recommend this drama to new watchers, with respect to old watchers I don't.
It starts pretty interesting, until half way, were the writer (or maybe other influence over the writer) made turn this drama into a boring well-known formula of "the girl ends up with the jerk". There are some other side stories to entertain but after that twist, I sincerely couldn't keep watching: I skipped most of the last episodes. I even felt cringe when the writer use the typical "return of the male lead's ex" before the last episodes. I mean, c'mon...