This show deserves all the hype and then some, it is fantastic. The fact that they adapted it so well even though they had to cut out the overt homosexuality of it is incredible. Now, here is the review.
Story:
This has one of the most interesting storylines in a drama that I've ever watched. Like there are 50 fudging episodes all about an hour long and I was not bored once. It is important to note that this is based on a book, a gay romance book in particular, so of course it would be totally interesting but this elevated it. This is a drama you cannot watch in a single day, even if you binge, but it is worth the hours.

Acting/Charecter:
Phenomenal acting by all parties but my faves are Wei Wuxian and his sister. I sobbed like a baby in some of the scenes in this show, the actors were really able to get me emotional with their performances. As for charecters, my favourites were Wei Wuxian, his sister, and the brother sister duo. My least favourite, villains excluded, was Wei Wuxian's brother. Specifically in the second half of the show. He just annoyed me a few too many times.

Soundtrack:
Gorgeous, beautiful, stunning. It is one of the best tv show OST's ever.

Rewatch ability:
While it is a phenomenal show, it is not rewatchable. It is simply too long and has too many twists for, in my opinion, it to be enjoyable a second time. However, don't let this discourage you from watching it the first time.

Overall:
One of the best Cdramas I've ever seen and, even though it came out a few years ago, it is truly a must watch if you are into Asian media. Please watch this, I promise you that you will like it.