I quite liked this.
Some spoilers below:
The descent into the horror was handled really well, them screaming at the girl to kill herself was believable and harrowing, her cutting herself, people becoming violent, sex, mania, writhing about a lot. The actors were amazing and I totally bought into their collective mental breakdown.
The dancing was exquisite!
I wonder what happened to Omar.
At the same time, I get the criticisms of Noe, his work contains such gratuitous bleakness, can't help feeling it is just to troll people which is a bit fucking childish as a motive, sensationalism for the sake of sensationalism, but like Texas Chainsaw Massacre, I was just completely gripped and on edge the entire time. I can appreciate anyone's ability to create something that taps into your primal instincts and manages to hold the tension (and pace it so well) for so long. I certainly wasn't bored!