I watched this drama because of its good ratings and reviews. I'd say they're really well-deserved! For me, it is a great drama for many reasons. TMTETS was my first historical drama and after watching this, I would love to try more sageuks. It was truly beautiful to watch - the costumes, places, all the historical stuff, not to mention the good-looking actors! It was way too far from the boring drama I expected it to be. STORY - Interesting storyline! It has great drama, touching romance, some suspense and action, (somehow annoying) politics, and humorous moments. And it gets more and more exciting as the story unfolded. I was easily moved with the story. What else could you ask for? I didn't expect to have lots of laughs from this drama. And of course, you'll see a lot of sad scenes, a lot of crying. But it wasn't until the last episode that I cried my eyes out! Really. Some were really heartbreaking. Some was just too illogical, and too sad, to happen. Other than that, the ending was lovely. (You'll laugh with still tears on your eyes.) However, I can't get away with its downsides. I think the drama lost some of its energy on the second half. (Or I guess the first episodes were just too good!) I won't say there was no boring moment because there was some time that I just wanted to skip episodes and proceed to the last, I just find it predictable. (But I'm glad I didn't or else I could have lost the story.) BTW, I hate it when one character just can't move on, being so martyr, when he deserves to be happy. ACTING/CAST - I loved to watch this drama bec. of Jung Il Woo. But in the end, I also learned to love Kim Soo Hyun. For his superb acting, and looks. He gave justice to his role as the King. (Young Lee Hwon was equally amazing.) I couldn't say any flaw. As for Il woo, he has always been good. Though I think I love his character here less. Han Ga In was a real beauty, but I honestly thing the younger Yeon Woo did her role better. I also enjoyed watching the side characters, each of them. The younger actors also did a great job that I quite got sad when their characters got older. MUSIC - I love Back in Time and the instrumentals. I thinks they we're all perfect for the diff. moods of the series. But to be honest, I didn't get to appreciate its OST until I listened to it after finishing the drama. REWATCH VALUE - I'm not into rewatching but I suppose I will still watch it in the distant future. :) OVERALL - I give it a 9 overall. I love it to bits. Definitely a must-see. =))