As a fan of Nirvana in Fire, I perked up when I saw that Leo Wu and Zhang Lingxin were both in Guardians of the Ancient Oath, and gave it a go.

First Impressions (1-4):
The first few episodes were actually very promising. The machinations of the Yo Imperial Court contrasted well with the serenity of the Baili household, and Ming Ye Feng promised to raise big waves in the Wolf Tribe.

The cinematography is great in general, and the dim and gritty colour palette is also to my taste, as it speaks to a sort of realism and a lack of anachronism on the director's part.

Mid Season (5-33) Impressions:
This is where it starts to fall apart. The quality of the screenplay falls off a cliff (esp. the dialogue) and the generic/cliche storyline can no longer support the agonising pacing.

It just feels like people talk a lot without getting to the main point, and repeat themselves in general. Lareina Song parrots this line like a broken record across an entire arc of the drama: "If you touch him, I'll kill you!".

Leo Wu, Lareina Song, Karry Wang, and a full 80% of the other characters just aren't interesting to watch - the viewer can already predict what they will do and its incredibly boring to watch this occur, without any tension.

Props to Ming Yefeng, Baili Hongxuan, An Tingfeng, and Ling Jun, the only multifaceted characters, for painfully dragging the comatose body of the storyline forward towards the final arc.

There is zero humour in this drama, just none. Yuen Wah's Ji Qiu tries his very best but there's no straight man to match his absurdity - what a waste of this talented actor.

The active CG (the magic) is good in general, blends well into the scene and isn't poorly made. The passive CG is quite poor - the backgrounds of many Wolf Tribe wilderness scenes have been green-screened very obviously.

And could they stop blasting the main theme at full volume at every available opportunity, multiple times an episode? Did they commission ANY OTHER music at all?! Why is there no instrumental-only version of the main theme?

Final Impressions (34-45):
Episodes 34 to 36 were quite good, as the main characters finally start coming into their powers. This change of events wasn't to last though, as somehow the drama became even more boring after these three episodes than the episodes that came before them.

There is a confusing and haphazard introduction of the "ancient" characters, and because of the insistence of masking their faces and using three different names to refer to the same characters, viewers have no idea who is talking to whom.

Each of the very strong, very important-ish "Wu" disciples barely have 10 minutes to recite their entire lifestory: it is not odd then that all these new characters actually make the drama more boring - they just become repetitive obstacles for the protagonists to overcome.

It's not all terrible though; throughout the drama, you could say that Lareina Song had portrayed three different characters: the present, the past, and the "ancient". With each iteration her character became more interesting, and her acting talent more clear (I thought it was extremely poor in her first iteration, but I guess that was how it was written).

Ling Jun is also very consistent as the prime mover of the plot, but somehow Ming Yefeng became a stereotype of his own role, and Baili Hongxuan deteriorated to become a ranting and raving lunatic of a racist.

There is also an uncomfortable undertone of genocide/racism and sexism in the ending arc.
If a character is not a human, they should die [for the plot].
If a character is a woman who doesn't adhere to the Three Obediences and Four Virtues, they should die [for the plot].
If a character is a woman who is not a human, it's impossible that they could adhere to Confucian values and so they should die [for the plot].

Conclusion:
The very best dramas have likable heroes with depth, likable villains with depth, and likable side characters with depth. I find almost every character in this drama unlikable and one dimensional as written.

The protagonists on paper, Baili Hongshuo, Baili Hongyi, and Baili Haohe do not have sufficient agency in the storyline to be proper protagonists (Baili Haohe was a puppet both figuratively and literally: I dare say Karry Wang's role is not a real main character and only has top billing because he's famous/popular). None of the three have any motivation beyond what's been narrowly defined, are not complex, nor deep.

The final villain, on the other hand, has no real reason to be evil except for "it's the character's nature to be evil". What drives them? Evil. What is their hobby? Evil. Why are they fighting the protagonists? Because of evil muahahaha! Somehow this made perfect sense to the writers of this drama.

The actual protagonist of the entire narrative is An Tingfeng, and his tragic epilogue is ordained by karma. His character, and Ling Jun's character, have the only well-thought arcs from start to finish of this drama.

TLDR: Watch something else unless you are an idol superfan.