Plotline: A group of employees heads out to the middle of nowhere for the weekend and some team-building exercises. When they discover that the "resort" is actually a shithole in the middle of the woods, employee morale begins to wane. Even moreso when people start dying.
Scariness factor: Intense with quite a few jump-in-your-seat type moments.
Gross-Out Factor: Pretty violent and bloody. Not for the squeamish.
Complaints: It's not the most brilliant and original of movies, but it was entertaining. You never *quite* get why it is these folks are getting attacked though, which was a bit irritating.
High Points: Definitely the black humor. It has some really really good moments of it--especially the bear trap scene--where you feel just horrible for laughing but can't help it. The acting's not bad either. And it's got good pacing and is pretty intense. I was white-knuckled through several parts of it.
Overall: I'd definitely recommend. Was entertaining, fast-paced, scary, and yet it also made you laugh (and not in the dumbass Wayans-Brothers kind of way). Check it out.