Found footage that delivers
Outside the fact that this is actually a really scary film, the most satisfying part is that it delivers on its premise - by the time the film is over, the story is clear, we know - and have seen - who the dark forces are in the woods, why they are here and why they act the way they do - and the storyline is tied nicely together, with an ending that's not just running around the woods with heavy panting.
As a huge bonus, I really enjoyed the references to John Carpenter through out, and the production design overall - the audio production is quite impressive, and everything down to the on-screen boxy flickering when cameras are turned on or evil forces draw close are really well designed. I personally really enjoy when effort has gone into these kind of details.