When I read about Heirs for the first time I didn't watch it thinking that it would be boring. But I like the story. I think this drama have a great potential but some factors made it just boring and average. I think the cast was great. I´ve watched Park Shin Hye and Lee Min Ho before and I like them both. I absolutely hated Kim Woo Bin in the beginning, but then I just kinda changed my mind. I like him too. The characters were actually really complete. I like the music with a bit of english. It was ok, nothing remarkable. If someone were to play a song from Heirs I probably wouldn't notice it. Overall I think they did an okay job. This drama could defiantly could have been better with a little more effort. I think those who have watched Boys Over Flowers will be a bit disappointed when they´ve completed this drama. But you should definitely give it a try! It´s not that bad.