This book would be a good pick for the first week of class in an intro-level course. There's nothing major that I find wrong with it, but it does lack both (1) depth and (2) a strongly voiced point of view. I can read more incisive pop culture commentary every day on Jezebel. When it does have a point of view, it's a rather banal one: "You wouldn't know it now, but MTV used to stand for Music Television." How cutting! Also, some of her aside jabs are reductive to the point of being absurd; I don't know what malls she's been going to, but I certainly wouldn't use the phrase "girl power" to describe Hot Topic's sensibility.
I have trouble figuring out who the audience of this book is supposed to be. She manages to talk down to the reader by attempting to define pop culture, rather poorly, in the first chapter; later, she explains what gangsta rap is. (as an aside, does anyone who actually listens to rap ever use that particular term, or is it one of those phrases preferred by white journalist types? I'm actually curious) The author herself seems to come from a comparatively old-school feminist pedigree; most of the texts she cites most thoroughly come from the early 1990s and she handwaves most of the Third Wave as being ill-defined. Yet, although I can't find a firm birthdate for her, pictures seem to place her in her late thirties to early forties at the oldest.
I'm writing my most critical observations here but like I said, overall there's nothing particularly WRONG with the book, it just lacks nuance. In part this is due to the rather enormous scope of the book, which tackles film, music, television, advertising, magazines, and politics as well as the bullet points of feminist history from the 1920s to the present. I think a better approach might have been for her to select a single representative work from each era and focus more deeply, rather than covering absolutely everything, which results in absurdities like trying to explain Buffy the Vampire Slayer's feminist resonance in a single paragraph.
I did like the enormous list of references and recommended reading.