Hmm. Not so sure about the trailer, but Bloody Disgusting liked the movie http://www.bloody-disgusting.com/review/4006
and so did film jerk http://www.filmjerk.com/reviews/article.php?id_rev=1820
oh and look, Variety even liked it
http://www.variety.com/review/VE1117940631.html?categor yid=31&cs=1&nid=2562
maybe the trailer ain't the movie.