They would call a book like this "chick-lit". It's a nice story, about growth, knowing yourself and coming to terms with what life has for you -- abusive parent, rough world, and unfairness in general.
Yet the more I read, the more I thought about an old play by Eugene O'neill "All God's Chillun Got Wings".
This book is pleasant past-time and easy reading, but what O'neill did was a great play.
When writing about the marginal group, an easy way is to idealize them and create perfect heroes/heroines, like what the author did in this book.
But great writers dare to go much further, and tread in the dark zones of humanity, just like O'neill did in "God's Chillun".