This was a well put together drama. Production values were high, and it was certainly amusing enough. Unfortunately, the story is what really matters, and it ended up falling flat for me. There's so much back and forth going on, for all the effort of watching each episode, ultimately, the end was not rewarding at all. I'm surprised it has as high a score as it does. (7.4 at the time of this writing.)
To sum up, I would have titled the show "It's Not That This Drama Couldn't Have Been Great, It Just Chose Not To." Viewer beware.