The story is nothing extraordinary, but well executed. The actors have done a very good job. The male leads have really good chemistry that is shot through the roof in the last episodes.
The female leads/ supports have actual contribution in the story and not annoying characters who only bates their eyes and create nothing but trouble. They are kind of badasses too. There are hints of romance but nothing that derails the feel and flow of the story.
As the series progresses, it goes on becoming more interesting. There are scenes in a few episodes that I fast forwarded and missed nothing, but overall, it is engaging. Even with a cliche mystery, it actually have a good ending.
And the series actually gives hint of a following season at the end of the last episode and I hope they make it soon.