Well, thinking about it the story line did go a bit slow, but I didn't notice it while watching. I really liked Kwon Sang Woo; I think he did a really good job with his acting. The different emotions and types of characters he showed were really convincing to me and I really loved whenever he smiled. Song Chang Ui and Han Eun Jung also acted well. Han Eun Jung was wonderful. His need for the acceptance of his family was extremely apparent. The only thing that I didn't really like was Yoona. At times she was alright, but overall she just didn't leave an impression. It was funny while also being serious. All in all, I loved the acting of most of the characters and the little corny lines here and there. But I do wish that the character of Lee Joon Hee showed up more. I understand why it would be hard, but I loved the character and wanted them to put more feelings and time behind him to see what he was like and truly believe in the "loneliness" that he was feeling.