Second viewing and then third viewing with commentary really helped this one for me, still have a few issues as i did the first time but overall points to the practical effects and if your watching in the sense of "there are no rules here" then its a much more enjoyable film. I'm more into the over the top blood and guts then i was the first time mainly for "balls out" reasons of "if your going to do it, fucking do it with a million gallons of fake blood". **
Vapid actors, amazingly stocked cabin, and people who seem stronger alive and still able to function and carry weapons with 2 dozen knife wounds/broken limbs/guttings then the "undead"....until you come back, then all of a sudden those wounds go away....and if your hit in the arm with a crowbar three times which clearly is shown to break it, no worries- in the next 3 seconds that will be fixed too.
Overall points for the fx and cinematography and a shame as even though this was so not scary, horrid "acting", and torture porn= it could all have been saved going the Rami/Whedon route and just a call that shit out, ala "Hey, why the fuck can we physically pull our own hand off and be perfectly fine with that" or "Hey, whats with this cabin thats been raided still have every grip eye hook in the world" or my favorite "I'm sorry, why is your girlfriend even in this movie as shes only had 5 lines and is fucking pointless?" FIN