Meh. It's ok I guess. Just like the original part 2, I found it to be better than the first film, although this certainly isn't a remake of The Hills Have Eyes Part II (1984), but is rather it's own thing, which is why I probably like it a bit more.
The originality doesn't stretch all that far though, as this kind of stuff has been done better elsewhere before. If you want to watch a bunch of weirdo yokels terrorising a group of army reservists, just go watch Southern Comfort (1981) - it's a MUCH better film.