Enjoyed it but one annoying cliche...
... that appears in these movies is how quickly this group of close friends turn on each other when things go south. Suddenly, they are yelling at each other, accusing each other of moral failings, working at cross-purposes, etc.
I just watched the Cabin Fever re-make (don't waste your time, BTW, it's lame) and it followed the same template.
The narrative problem with this formula is that, as a viewer, I stop giving a sh!t about the characters since they are all whiny, selfish jerks. In some cases, I start wishing some of them would die faster.
In real life -- and better movies -- I think people are more likely to band together. Not necessarily out of a sense of duty or loyalty though. Quite the opposite... I think people will selfishly realize that the best chance of group survival is to work together as a team.
An example I can think of off the top of my head is Aliens. The Marines bicker and insult each other, but even the weak-willed, cowardly Hudson gets behind the effort to save themselves.
Some people have compared this to The Descent. Been awhile since I saw that one, but, didn't the women all work together to get out in that one?