This is the only drama I've watched so far that I can give a ten to! The plot while similar to rooftop prince (aka RP) was very different in several ways: how the guy could transport back and forth as needed (the last teleportation was kind of lame in one sense, but it made the ending as a whole was better than RP IMO), the setbacks both main characters faced were beleivable (in context with the story of course), and just the overall feel of the drama was excellent. I do have to say there were a couple episodes here and there that were a tiny bit so so or slow, but not to the extent that you'd want to skip them or fast forward through parts. The ending I have to say as forementioned was a bursting with almost every emmotion you can think of the only real problem I had with the ending was how they teleported him. Now on to the cast: No complaints and everyone was fantastic (her ex was a bit irritating in a couple portions, but that's just the way his character was supposed to be). The chemistry between In na and Hyun Woo was amazing, and I heard that he confessed he really likes her in real life too -I hope they do become a couple because they are super cute together. Anyways the soundtrack was great and is one of the only dramas I actually really paid attention to. The rewatch value IMO is excellent, and I will absolutely watch this again anytime I need a "recharger" drama and is my FAVORITE drama.