I think this is a drama I would highly recommend just because I like the speed of the storyline. It has a really good pace and keeps you wanting more each time. I never feel like there are moments where I'm really bored and feel like skipping ahead. I think the music is amazing! It keeps the feeling of suspense going and is very well timed. I live Junsu's song and I think they always put it in the right moments, also, and don't repeatedly put it in episodes over and over again, which some shows like to do. For the acting, I think Park Si Yeon does an amazing job. At times, I really dislike her character and get confused at how she really feels, which I think is how it's supposed to be. All of the characters are types that usually hide their feelings, and so it's probably difficult to act that way and at the same time end up showing their feelings in some way or another. Anyways, overall I think this is a really great drama. I can imagine myself rewatching it, but not sure how often I would or if I am actually going to or not, so that is why I put an 8 for that category.