This is my second Chinese live action series which is based on BL novel after The Untamed and it has positive and negative aspects.
First of all, storywise is not the best sometimes to the point of confusing and doesn't really make sense. It doesn't follow the novel exactly since they have to rewrite the whole story to avoid censorship. But I really hoped they could've done better job to make it more logical and easier to follow. The CG effects are also quite bad and seems like a cheap production. The acting of the supporting cast are also not very memorable and some of them are downright third-rate performance.
The only saving grace of this series is the superb acting skills and amazing chemistry between two leads, Bai Yu (Zhao Yunlan) and Zhu Yilong (Shen Wei). Man, they are so pleasant to watch, from their interaction, dialogue and micro expressions between them. Gentle and beautiful Shen Wei and shameless Zhao Yunlan, it is as if they come straight out of novel to real life. To be honest, I watch this series and give good rating just because of them. Oh and the soundtrack too! Especially their duet song"Flying Across Time", it's really good and give you some feelings of their relationship.
I would recommend you to watch this, regardless of the story and quality of production, just watch for the main leads performance and you won't be disappointed :)