Not that bad- Better than Lazarus Effect
I went with my son because we had nothing to do, so we went to see it without reading any reviews or anything. It was only us two in the whole theater. Nice!
Anyway, this isn't a "found footage" movie (thank goodness). There are some security camera scenes.
It wasn't your typical demonic possession movie. It went a step further. I'd watch again. Just don't expect this to be a big blockbuster winner. I'd say it's much better than Lazarus Effect movie with Olivia Wilde.