I'm not a huge drama viewer since I don't have a lot of time, but I have to say this one is the best I've seen as of now.
I'm a huge BL fan lol. Before I got into this drama, I read the novel, manhua and watched the donghua and love them, so I have high expectation for the drama. The start was a bit confusing for some who don't know the story, but I promise if you get passed first couple episodes, it IS worth it! I was afraid China's censorship would affect it but I have to say the writer and director did NOT disappoint. On the surface, the drama does not seem gay at all but you can see/feel the subtle hints of their feeling through the characters' interaction. And that's what made me happy, cos they found a way around the censorship to stay true to the novel (minus the H-scenes).
The cast is awesome and such eye-candy. Besides some not-so-good acting from supporting roles, the main roles delivered very well. I'm quite happy this drama introduced me to Xiao Zhan and Wang Yibo cos they're great talents.
The soundtrack is so heartfelt. Each song matches the theme and characters really well. The tune is beautiful and the lyrics are so meaningful that they brought me to tears every time.
Overall, the whole drama is a rollercoaster. I laughed, smiled and cried with the series. I'd LOVE to see more of them. I keep on rewatching it and can't seem to move on to a new show. 50 eps are not enough for my thirst T_T

P/s: I highly recommend reading the novel as you can see more of the main couple's love in the extra stories. They're really fun and romantic.