It wasn't as great as it could have been. Too much horror thriller cliche moments. Long and drawn out with a lot of useless story. It was obvious the trio were going to end up having some super abilities to pop up out of nowhere and have some kind of master hunters/stalker skills. Compared to how they are....loud, obnoxious, ruthless killers.
Seeing them finally meet their end would have been most satisfying, but I guess we are set up for another installment, in which I'll pass on if it ever occurs.