That pretty much sums it up.
No plot, just killing.
The 3d effects were pretty lame. I don't know what ithe point is to making a movie 3d. If they're going for realism, they failed miserably. I'd say they probably should have had the cameras closer together.
Plus, with my issues with double vision (which have gotten a lot better) I found it a little disconcerting for the first 15 minutes or so.
But you know... sometimes... you just want to see some mindless killing.
This won't be the worst movie of 2012 as one reviewer wrote... I'm sure they'll come up with something far worse. I have faith.