Decent watch, probably won't watch again, and can't recommend.
It's not that it's a bad movie: I'm not a big Elizabeth Banks fan, and you get a lot of her, like 90% of the movie is just her being abused by the world, with very little triumph along the way. The rest of the movie is basically everyone else in the world forcing, manipulating, and validating her, and it would have been a better experience if she was a stronger character.
I get (and it's very obvious, very early) that the point is that she's a weak character that is forced to grow through the adversity of this adventure. I just would have rather seen someone stronger (think American Lara Croft for a moment) run a similar formula of problem, attempt resolution, extraordinary circumstance, new problem, etc. Hell make it a parkour movie where a free runner had a blackout night, basically "The Hangover" meets "Mirror's Edge" (video game).
My point is, that when you see something and want something else, you don't like what you have in front of you, even if it's a decent (but different) movie that you were expecting. It an awful part of being human.
While the humor is decent, the repetitive formula creates fulfilled expectation, which dulls the comedy. It's also not very uplifting.
I think it's fair to say that Elizabeth Banks is statistically attractive, in a cute dress, and is playing a character who is a local celebrity. I've also been informed being a white woman is advantageous. She's basically an ideal candidate to get charity help, except from people that are just as likely to kill her, but it pushes my suspension of disbelief that she isn't able to get people to talk to her, let alone actually help her.
I'm just realizing that, having been stranded before, on multiple occasions, I may be being a little harsh, but it just doesn't make it as enjoyable for me.