I watched this movie on netflix the other day. It was surprisingly entertaining to me. Its filmed like the Blair Witch Project, but instead of the woods and a witch, its on a snow covered mountain with a couple demons. The trailer is spoilerish so don't watch it if you'll be watching this movie soon or it'll be too fresh in your memory and certain scenes will loose the surprise factor.
The camera work was much better than The Blair Witch Project and Cloverfield, thanks to bipods and plenty of stationary shots. Aside from the camera having a bit too frequent electronic interference issues for the last half of the movie and few too dark scenes, this was a decent movie to watch.