I have been an Angelina Jolie fan since she was pregnant with Shiloh. It hasn't been too long but I already heard most about the things that were in the biography from a single, but thorough fansite of Angelina's, [...].
Brandon Hurst DID give good information on Angelina's childhood, which many people, including fans, don't know about but want to know; such as the rumors and exaggerations of Angie's very young love life. The whole "first chapter" in the book strictly covered Angelina's parents' life from before, during, and after Angie's birth, including what really went on about her father cheating on Marcheline, Angie's mother.
Most of the rest of the book mostly told you what tabloids tell you. If you are buying this biography to know what went on "behind the scenes" of the Jennifer-Brad-Angelina ordeal, don't expect to find out anything new because no one except Angelina and Brad knows what really happend so the author could only tell you as much as the rest of the world knows. But if you don't know much about Angelina, her childhood, her parents, early acting career, and beyond, this touches major points in her life that is good for the unknowledged fan of Angelina Jolie.