First, the story really was unique. That two so completely different men switched bodies and their teacher/fianceé right in the middle of that mess. But, I, for myself thought, there could've been more potential. The first episodes were great, but around the middle, (7,8..) it kind of dragged. The humour got lost, and there was much drama added. I thought there wasn't any need for that, because in the beginning there were so much scenes to laugh about! Although it got better the last three episodes. I loved the especially funny scenes, I laughed so much during the first episodes. I liked the ending. Don't want to spoil, but I thought it was a happy ending, at least for the main character, Gil Da Ran and her 'prince'. I loved the main characters, Da Ran (even though it felt like Da Ran cried a lot lol), Kyung Joon/Yoon Jae. And I LOVED the acting of Gong Yoo. The face expressions and the way he interpreted both men in one body. But I was kinda annoyed by Ma Ri's character, especially in the later episodes, but it's just my opinion. The side characters were lovely as well. Overall, the drama was still sweet, especially the love story that developed between the characters. I think I may watch it again sometime, and could definitly recommend to anyone who wants a complicated, yet funny and different lovestory. The music was good, and fitted the scenes very well.