Story: This was one of my first Korean dramas and I thought it was pretty great. It has up to date probably one of the most interesting and crazy storylines. I can admit there have been similar type storylines, but none of them have been able to go from start to finish with a strong storyline, they always seem to flake out with the ending episodes. The story makes you want to keep watching it, without having a break. If you happen to have a break, perhaps to sleep... you can not stop wondering what is going to happen next. Acting/Cast: I think Hyun Bin played his character reallllly welllllll. He was so cute and innocent-like. He is a great actor indeed. I don't know why but I don't really like Ha Ji Won as an actress... but she did a great job in this drama! The two leads were REALLY good at portraying each other when they swapped bodies, you could almost see the soul rather than the actual body on screen. I didn't really like OSKA... his voice is a bit annoying... but he was still a vital character in the drama. Music: This drama is probably more based on instrumental music rather than music with lyrics. All of the instrumental pieces are really nice and nostalgic when they come on in my iTunes library. However they aren't songs that I would go out of my way to find and listen to. You don't realise this during the drama, but Hyun Bin is actually singing one of the main OST songs... although he isn't a singer, he is surprisingly pretty good. Rewatch? Definitelyyyy! I often do. Although it is quiet a long drama, I still seem to watch almost every episode and every part when ever I decide to rewatch it. I especially like to rewatch the romance between the leads because it is so cute and niceee. Overall: I recommend this drama to anyone and everyone. Honestly... I think lots of people would like it. I'm sure a lot of people have already seen it because it is one of the most popular Korean dramas, but if you haven't already... I think you should! You don't know what you are missing out on!