There's really not anything I can say that will allow me to connect people to this movie.
I guess, if you're wondering if you should watch this: yes, but don't go in thinking it's a horror. And also, if you can avoid it, don't watch the trailer, which gives that expectation strongly. It's horror on an existential level - there's not any jump scares. It's not your traditional "horror".
You should also go in with the understanding that this movie is about what happens when you try to become someone who you are not meant to be. This is a spoiler, yes, but it's one that enhances your viewing experience rather than detracting from it. Just look at the number of people in these reviews who simply do not understand this very basic point.
All that being said, this still might not be the movie for you. That's ok. But for the people that this movie is for, it's fucking amazing. This is the most existentially horrifying movie I've ever seen. And it's wonderful.