Looking at it this drama is not that bad guys! Sure I wouldn't recommend this to a person who just started K-dramas but it has its pros and cons.First of all, I would like to applaud the writers of this drama who decided to do something different for once. Lot of viewers desire change in the stereotypical romantic comedy formula. This is definitely a drama that is not too stereotypical in taste especially with the ending. Logically, the story and the ending actually makes sense for once. It is even realistic besides the time-traveling concept. Other than that, lot of people had the perception that the story is really slow sometimes. I would say it is around like episode 9 but it picks up its pace. However, it is not a boring drama. Time travel and alternate universes are very great plot types or at least I enjoy those concepts. Next, as for the acting, I think the actors did a great job. Yoon Eun Eye and Han Chae Ah did a great job with their characters. Han Chae Ah is impressive with her role as an independent woman while Yoon Eun Hye's character development is amazing. Kya~ This is Lee Dong Gun's comeback after a long time but I think he played his characters to its worth. Plus, Yong Hwa's acting has improved so much since You're Beautiful. I'm so glad that he wasn't in Heirs. Additionally, the music was so-so not memorable for me, sorry. It's not bad but it will not leave much of an impression. This drama isn't that re watch-able either.It is kind of like a one-time rush drama for me since I caught up to episode 14 in a short time. Overall, this drama deserves a 8 and is not that bad. I'd recommend this to Yong Hwa fans, Lee Dong Gun fans, people who don't want to cliche rich-boy-poor-girl dramas, people who just don't want to watch a romance kdrama but still want romance, or finally someone who wants something different for once.