I can see why many people won´t like this, it is not a standard horror movie, but something pretty unique. If you are into slow paced, atmospheric, subtle horror with an occult setting, maybe kinda like The Witch, then I can really, really recommend this.
I loved the sound and I found the characters to be well written and acted. The ending could have been a little bit better and I didn´t like the CGI in the end at all.
Overall, I am very into this movie and I will see it again.