I just finished this book last week. After a friend linked me to her website, and specifically the "Sleeping Sickness" video - I knew I had to read her book.
She's insightful, determined, and is giving voice to a real problem, the very real exclusion of trans women from Feminist and Queer spaces.
She fairly attacks both Gender as Social Construct, and Gender as Biology, and points out the flaws in both, while leading you down the path that there's a piece of truth to both theories.
She also clearly defines the issues facing todays Trans community, and how our battle should tie in with Feminists and Genderqueers, but why it doesn't.
I think if every Feminist who's ever advocated a "Womyn born Womyn" policy, or every Genderqueer who dismissed a Trans Woman for not being radical enough in her gender presentation, or every Misogynist in this country stopped and took the couple of hours to read this book, they'd at least have some insight into why their comments are painful, and what effect their actions have in upholding the binary.