Perhaps I shouldn't be writing a review as I had to turn off after about forty minutes due to the total lack of originality, terrible pacing, and the incredibly poor attempts to copy Japanese horror shock tactics. In addition the acting was largely terrible with the exception of the female lead who was interesting and likable both in appearance and acting style.
I couldn't decide what was more wooden, the cabin or the leading man who I was surprised to find was an experienced UK TV actor (although I'd never seen him in anything) and not a friend of the director who had never acted before. Ironically the character he played was an artist who had a shot at Hollywood stardom and blew it because he "sucked" at acting, I suspect real life will mirror art.
CGI was quite good for such a low budget film however prosthetic effects looked like body parts from shop dummies.
Despite all the negatives the visual style and lighting were particularly good as in places was the editing although the use of Matrix style speed ramping was completely out of place given the nature of the story.
As is becoming the practice with such films I suspect the other rave reviews are from people connected with the production (when will I learn not to believe them). Maybe this is why I'm being so harsh, you people have to stop doing this I simply can't believe anyone with any knowledge of modern horror could give this film a positive review.