I'm 4 episodes in and I have more Cons than Pros when it comes to this drama. This first impression is based on the drama only, I have not read the book.

Cons:
1. FL. Her acting is off sometimes in these early episodes. Like she's going through the motions. Is she supposed to be this wooden and stoic?
2. FL's false eye lashes are distracting. She has rather large eyes to begin with and she doesn't need the extra thick eye liner and fake lashes.
3. Costume for the FL seems too modern. She wears slim black pants and a short robe, which looks almost like a jacket, while almost everyone else wears a calf length robe. The designs of the jacket are too modern, like jackets one would see on boy band performers.
4. Villains have the craziest eye brows I've seen in a C drama
5. A couple of the scenes are too unrealistic. Yes, I get that this is a fantasy drama, but she gets whipped by her mother and doesn't suffer any major damage. While the ML is imprisoned, the two are just having a long chat through a hole in the prison wall. WTF?
6. ML is too much of a baby face. He looks way too young for FL. I'm aware that there is a 10 year age gap between the two main leads.

Pros:
1. I appreciate that the some of the wigs have white hairs. In most of the C dramas that I've watched, it seems that everyone has jet black hair into their 60s.
2. I first saw Wang Yibo in the Untamed and wanted to watch him play a character different than Lan Wangi. Nice to see him play a character different than his real life persona.

This is just my first impression. If I continue with the drama, I may revise my review.