Holy shit, it's excellent, I'm actually a bit shocked. I liked S1-3, but now it feels like that was just a setup for S4
We finished it yesterday, they did a great job at handling the three separate plots, and then the convergence of everything into the big reveal, JFC, that was just fantastic.
And the concept of the Hellfire Club from the X-Comics, wow, did they nail that, first as a bunch of a geeks playing D&D and then as a very direct callback to the comics, and speaking of, can the horror callbacks get any better?
Nope.
Also this, which I can't love enough ...
https://www.twitter.com/i/web/status/1530656428322607104/