I had this in my queue for 2 years but wasn't motivated to watch it until a) I saw Ji Chang Wook in Healer and b) realized Yoo Seung Ho was in it as well. So I watched it and I'm very very glad I did. This is easily the best sageuk I've seen so far. I loved the story, the cast, the acting, the fight scenes, the character development, the music (which I cannot get out of my head), and of course our 2 leading men. I truly loved Choi Min Soo as Chun (the old Sky Lord) - and Jun Kwang Ryul did his usual impeccable job as Gwang Taek. I just cannot get enough of Ji Chang Wook, however! He is fabulous in this, as is Yoo Seung Ho. The bromance between Dong Soo and Woon is the main thrust of the entire series and is done so well. The direction (especially the fight scenes) and the cinematography compares favorably to films, the spectacular vistas shown are breathtaking. Some other reviewers talked about the lead actress (Shin Hyun Bin playing Ji Sun) being too cool & emotionless - very true but it seemed to fit the character very well. It certainly didn't showcase any great acting skills, but since it fitted so well with how both our leads saw her, it did not distract me in any way. I much preferred the other 2 girls, much more animated and interesting. Still, no surprises that the aloof, silently suffering damsel in distress attracted both our warriors LOL The story keeps one guessing, even if you know the actual history - which is always a plus in my book. Very interesting take on the whole Prince Sado episode. All in all I highly recommend this drama!