What a beautifully intriguing film. I can tell it's not for everyone, but I certainly enjoyed it beginning to end.
It's very visually interesting with well executed practical effects and eerie sound design. Scarlett Jo does an incredible job in her role, she manages to sell being something not quite human.
There isn't a a neatly packaged narrative that wraps up nicely at the end, so if that's what you want then maybe skip this one.
I'd say it feels very suspenseful, without there being a release/reveal. Parts of it feel like a dream that keeps repeating. A dark dream that's not quite a nightmare; you're more curious than afraid.
I don't want to spoil more, just give it a chance if you're open to something different. Maybe approach it as art, rather than entertainment.
Enjoy(: