At first I thought it was kinda' boring but as you watch it further it'll be funny, romantic, and an absolute tear jerker! The two main characters 'Kim Joo Won' (Hyun Bin) and 'Gil Ra Im' (Ha Ji Won) both did a good job on playing their own characters and as well as playing each's characters when they switched bodies specially Hyun Bin. He was so funny when he was acting like he was trapped on Ha Ji Won's body. It was kind a weird to see an arrogant president of a dept store, (his character) turned into a girl. You'll be like "what the actual galactic freak is that?!" hahaha it was really funny. Ha Ji Won also did a good job! But her transformation was not exciting and funny as what happend to Hyun Bin because her character was really a boyish. She was a actually a stuntwoman so it's not that surprising unlike Hyun Bin's transformation. Other characters also did a good job except to Director Im (Philip Lee) his acing was so lame! :| Overall i'll give this a perfect 5 stars. I enjoyed it that I was like glued in the screen :)