I have just finished the best period drama I have watched. This show deserves more than a perfect 10 rating. Going in order..
The story is phenomenal, never once was I bored. The story has something for everyone, be it comedy, action, intrigue, romance. While, there were parts of the story, that bothered me, it was needed to make the drama flow better. This story was simple, yet at the same time complex, kind of paradoxical.

Acting:
Jang Hyuk as Lee Dae Gil was absolutely brilliant. At times I found myself crying with him, laughing with him, wanting to kick his behind. At the beginning he wasn't the character/actor who kept me coming back, because well I couldn't stand him, but the more I watched, perfect.

Oh Jo Ho as Song Tae Ha reminded me of what a man with honor is. While he could seriously put the hurt on someone, he wasn't greedy about having the power to hurt/control people.

Lee Da Hae as Hyewon, I can't really say anything because I don't like her, throughout the entire drama she annoyed me to no end, but the drama wouldn't have been complete without her.

Those were the "main" actors, but I feel one of the supporting actors deserves a mention...

Ahn Suk Hwan as artist Bang, he brought comic relief, that was much needed in this drama. No matter the role he plays, he performs perfectly.

The music was perfect, it wasn't all slow and boring. It mixed old music with newer styled music very well.

Overall, if period drama's are your thing, watch this drama. The only thing that kept me coming back in the beginning was all the muscle, but I am female, so that would attract me. I have a hard time picking period drama's, but once I pick one, I have to finish it, and am usually disappointed, but this one has by far surpassed any and all period drama's I have watched. So much so that I actually sat here and tried to formulate my impressions into words by typing this review.