Amazing drama, great music, great character pairing, and so much good music. The only thing that made it not perfect was the slow pace at some parts, but the whole story was exciting throughout. It seems to be different storyline than the original from what I've heard, but still worth a watch.
-- Best parts of the drama: subtle bromance and girl love, awesome music, some of my favorite actors, and amazing special effects, There was also plenty of comedy, which was surprising at first, but it definitely helps create a more addicting show to watch.
-- Worst parts of the drama: Very few times the scenes seemed to last too long, (not that the plot kept repeating -- luckily this one didn't do that), but I just sped it up a bit a few times and was fine. Don't skip episodes or you will get lost quickly. The other bad thing was that the drama ended. Also, IMO li Qin should have been in every episode :-P