This is the only drama that I will readily rewatch and the story although an "old concept" was really fresh. The acting was amazing by all parties -villains and good guys alike. There weren't really any moments in this drama that were too unrealistic, although a few scenes do teter close to the edge dividing what's realistic and unrealistic. This was even better in my book than Autumn's Concerto, even though the plot lines are somewhat different. The only real complaint I have with this drama is the music got a bit repetive, but otherwise I loved this drama through and through. This is a must watch drama and I highly recommend it.