I quite thoroughly enjoyed the movie and would recommend it to others to watch, however one massive criticism of the movie is (see below under spoilers). Other than that, the movie was fantastic, the alligators looked real. The tension was on point for the duration of the film, and it handled alligator behavior pretty well.
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Just the pure unkillable nature of the two main characters, like the father: broken leg, multiple deep lacerations on his chest, and a chomped off arm. Lives
The daughter: deep lacerations on her leg and arm, somehow out swimming alligators(20 mph top speed in water, fastest human wearing fins swims half that)