I've never watched the original version of this show so purely based on this kdrama I think it's amazing! The different mysteries are interesting and enaging but what really makes this drama worthwhile is the characters. The way the characters develop and their friendship grows is really satisfying and fun to watch. The only two problems I have is that I think there could have been just a tiny bit more romance with Mrs.Yoon and the end of the drama feels like it is setting up for a season 2 and therefore it leaves some unanswered questions. I feel doubtful that there ever will be a season 2 so i don't think it should have ended like that but regardless I really enjoyed the final episode despite some plotholes.