If you liked The Fountain, you'll like this

Rating: 10/10 (21 September 2017)

Well, I can definitely see why it's a "love it or hate it" kind of film. It's not a horror movie at all, it doesn't even have horror elements, though IMDb classifies it as one.
I don't want to spoil it, so I'll just say the film is not a straightforward story. If you're the kind of person who likes formulaic films with simple moral messages, who hates being surprised by Shyamalan type plot twists, who thinks that any style of photography or sound even slightly out of the ordinary is "pretentious" and therefore insulting, you'll hate it.
If you love open-ended interpretations, symbolism, beautiful tactile films, and trust that Aronofsky, Bardem, and Lawrence will take you somewhere, you'll like this film. That's how I went into it, and I loved it. Aronofsky is not quite as inaccessible as David Lynch, but think along those lines, and you'll be prepared.
I will say that the first half features a lot of tight closeups and hand-held camera work, so those who get motion sickness from such things might want not want to see it in the theater.