The book has its flaws, like the system rarely showing the farther you get in the book, the sudden ending with no real conclusion, and the MC slowly becoming a background character, but its still an okay read for passing time.
Of course, this is based on the fact that you familiar with the honghuang mythology of course, if you are not then I highly recommend you DO NOT read this as your introduction to the mythology.
The story is alright, but like all other honghuang stories, you need a little understanding of the original to enjoy this spinoff.
Also, apparently the author likes to publish chapters first and then go and revise or rewrite them later. This messes with the mtl so badly that, in recent chapters, the occurrence of broken, missing, or repeat chapters is quite high.
Author can't seem to go a single chapter without trying to make other countries outside of China look like arses. The constant switching of POVs is excessive as well, I feel like I understand some of the side characters better than I do the MC.
This is a story based on the mythology of the ancient immortal world. Essentially a fanfiction of sorts, meaning you need some understanding of the original source to be a part of the target audience. I don't know much about the actual mythology, but after reading many such fanfictions I understood enough of the major events and conspiracies in the mythology to enjoy this novel, so my rating is relatively high.
If you don't like fanfictions or don't know anything about the mythology, it's not a deal-breaker, but it's not likely this book is for you.