I loved this drama although it had a few minor problems. The story was great and explored the depths of mental illness as well as the love and dedication needed to overcome that. It also focused quite a lot on how in love you don't become one but are individuals and your love must be an achievement, not a sacrifice. At first I found it really hard to get into this drama and found it really slow. For the first 11 episodes, I kept predicting the plot and found Jang Jae Yeol and Ji Hae Soo's love/chemistry unrelatable. To be honest their relationship annoyed me, JJY seemed really cold and aloof towards JHS, while JHS just seemed angry all the time but also a doormat. However, after episode 11 I was completely hooked and marathoned the last 5 episodes. This is strange for a Kdrama, normally it starts out great but peters out towards the middle and end, but this drama only got better and better. It also provided a few really funny and heartwarming moments. I started watching this drama mainly because Gong Hyo Jin stars in it and I loved her in Master's Sun but I feel that the chemistry between her and Jo In Sung was a bit awkward and forced especially in the first half of the drama. (I guess we can't blame GHJ if she doesn't have the same chemistry with JIS as she did with So Ji Sub ;) ) Despite this they are both great actors and put on a stunning performance, I even cried a few times towards the end. The music was great, it really fit the drama well, and I'll definitely be downloading some onto my iPod. As for rewatch value, I may rewatch the last 3 episodes, but not the whole drama just because it was slow. I would definitely recommend this drama if you want a heartfelt story and want to cry, or even just to see GHJ and JIS act. However don't be surprised if you find it difficult to get into, but the last half of the drama is worth sticking it out.