I couldn't stop watching this drama once i got started. The story line was great. Kang Ji Hwan as Hong gil dong was casting magic. I can't think of anyone who could have done a better acting job for that character. Jang Geun Seok as the "Young Master" was amazing. Sun yu Ri was also great and a perfect fit for the part. But those are only the lead characters. There was so much good acting in this drama, there is no way to mention everyone. You need to watch for yourself. I only rated the music as an 8, because to be honest, I didn't pay much attention to most of it, I was so captivated by the story. For rewatch value, I only gave this a 5, because emotionally I am not so sure I could watch this again. I don't think anyone will be disappointed if they watch this..but beware...this story stays with you for days after watching it