The drama is very good, as it is full of action, drama, little bit of romance, history, and a lot of great acting and likable as much as unlikeable characters. The main star, Lee Joon was once again amazing and I liked the female lead, as well as the main villains and other characters, as the casting did a very good job. The music is very good also and I cant really pick on any major flow, as I take in counts, that it is a slightly older kdrama, for that matter. Overall, very enjoyable drama and I would reccomend watching it to anyone.