Warning: This contain spoilers.

Bad movie.
That woman is so despicable that it is a shame that we do not get to see her die (seriously who decides to throw a fit of jealousy when you have a crazed sniper hiding in the woods wanting to kill you and your husband and dog!!!!!!!!!!). For a few seconds at the end when they try to escape there was a few seconds where it was suspenseful but that was it as far as suspense goes. There's not a lot of gore too but that gore is well done. The twist at the end was a good one, did not see it coming (should of since it would of been like a miracle for them to be saved like that).
The directing is very bad. The acting, cinematography, editing, and music are bad. The script is average. The special effects, makeup, costumes, sets and story are good.