It's done as a found footage horror film, but there's two tapes going on. The modern day, as the main character is trying to get her daughter back after loosing custody, and her past. She wants to tape her daughter coming home, and so it seems like good reason to tape things.
It's of much higher quality than a lot of found footage types, and does have some special effects going on. There's some really creepy effects going on, including some pretty horrifying Trypophobic scenes. But it does suffer some of the shaky cam downfalls of found footage, but not as bad as many out there.
I really liked the story going on, it really added to the horror, and does explain things pretty well. I also liked how it actively had the authorities involved because they worry about the welfare of the child. It seems pretty logical with everything else going on that this would actually happen. I thought it was a pretty scary/creepy watch.