Writing wise, it is very good. The plot and world building makes sense and doesn't seem unbelievable. Also it tells the perspective of what original genshin events would have been like without Lumine/Aether and replaced with another being on par with Morax.
Updating wise is amazing. People would think that having an overpowered Geo Archon would be boring but no, its actually pretty funny to see Zhongli get shocked everytime (since this man always nonchalent in the game).