It's an interesting premise. A teenage girl who was expecting to die soon from cancer is suddenly told that she's in remission, and can look forward to many years of adulthood. Likewise, I don't have a problem with a protagonist trying to figure out how to adjust to a complete change in her plans. It turns out that she's more scared of living than she was of dying. The movie has a good message about living life, instead of just waiting for death.
However, the movie has a very unlikable protagonist. She keeps milking the cancer to get special treatment. That is disgusting behavior. My brother's wife lost her sister to bone cancer, and I wouldn't dare show this movie to her. Furthermore, the way Hope treats her friends is abhorrent. I know that a story needs a low point, but it doesn't have to result from the main character being a bratty jerk.
She changes, though. She finds a badly needed new friend, who helps her get her life together. Friendship is a powerful thing, and a single friend can make a huge difference in someone's life.
