Disappointing. Some of the previews have been nice and it's been written by Tony Burgess who also wrote Pontypool which had it's unique aspects.
The premise is trashy enough (and the opening sequence disgusting) but for most of the movie the story is awful and the whole ending a disaster in my eyes. Maybe I missed something but for a sorta origin story of a Toxic Man-esque monster I would have preferred something else than what I got while he sat in that hole... The FX work was good though.