My guess is that it depends on what you've seen before. If this type of theme is new to you ... you're in for a treat. The plot is constantly moving forward and you're wondering what's going to happen with a massive hurricane, lethal alligators, rescuers, a collapsing house and rescuers. There are big problems with the story, but you'll probably still have a good time.
It won't be as entertaining if you've seen movies like The Shallows, Open Water, Open Water 2, Frozen (2010 snowboarder movie - not the Disney film) and to some extent, Adrift. You'll likely feel you've seen the same movie before.
Given the lack of good horror-suspense movies this summer, this might be what you're looking for - especially if you haven't seen the aforementioned movies.