I guess this is my bad, I have only watched fate 0, stay night and unlimited blade works, so I'm probably missing a lot of context.
The anime does have a good production value, the VA, the animation et soundtrack are all A-Tier.
I have no idea what's happening though, so much info dumping with terms i've never heard before and I don't know if I'm missing important knowledge or if it's just the style of the anime to try and be "mysterious".
It's still very much watchable, despite its biggest flaw being a too bloated cast with some of the cringiest characters i've seen in anime (Jester or the Francisca-something twins are a pain to endure every time they have screen time) but some others are so greatly interesting it's not a big problem.
I just wish I understood more about why each character has this or that power and how it works