I’ve watched it. As a horror movie it is disturbing and does a good job at scaring you, the music and scenery are well done.
However it’s also blasphemous against King Paimon and helps perpetuate the jewish paradigm that Gods/Demons are “evil”. I wouldn’t recommend it for this reason alone.
It’s not Satanic, quite the opposite of that, just like movies depicting Nazis as evil aren’t Nazi.
Jewish depictions of Paganism/occult are always about making them appear barbaric and evil. Ironically at lot of these movies, like Midsommar for example, done by Ari Aster who also directed Hereditary, showcase jewish culture more so than Pagan cultures.
Midsommar also was a good movie in the disturbing atmosphere that it created, where a seemingly good and light-filled village turns out to be a human sacrifice cult. Again this is the jew projecting what he does on Paganism. They sacrifice humans, especially Gentile children for rituals. I’m certain that’s what they were doing under those New York tunnels. The obsession with blood is a jewish thing, and was carried over to xianity, but they project that to Paganism.