I thought this book was great. It does what it promises to do: tell you stories about how terrible Facebook's leadership is morally empty, careless, and uninterested in their impact on the world. Most of the heat is directed at Mark Zuckerberg, Sheryl Sandberg, and Joel Kaplan.
It's well-edited, concise, and sticks to the story. Most of my friends are jaded about Facebook in general, but it's important to remember that the rest of America generally isn't: a lot of people trust tech companies more than congress, church, or labor unions. They might be cagey about privacy, but their opinion of CEOs like Mark Zuckerberg or Tim Cook is either admiration or ambivalence. Which I think means that books like this, that lay bare the evil of some of these people in a length and style that's totally compatible with an average book club, are important and great.
That Facebook attempted to silence this book isn't very surprising, but the critiques of it from other Facebook employees are pretty galling. Katie Harbath second-guesses Wynn-Williams's reports of sexual harassment and expects Sarah to acknowledge "the incredible contributions of her peers" in her work - like the take-home lesson of this book is that Wynn-Williams is so great at her job, not that it's an account of the evil at the top. Another former Facebook employee, Sabhanaz Rashid Diya, wrote that Wynn-Williams was complicit, which is something the author never denies.
The only thing that bugged me about the author's complicity was how she talked about not wanting to quit, saying that she needed health insurance. A relatable idea but not a particularly believable one, given how much executives at that level are paid and how easy it would be to get a slightly-less-fancy job at an adjacent company. Crafting a narrative for why you stayed ("change from the inside," rolling my eyes), and why you left (for moral reasons, of course) is time-worn practice for folks.
But I don't really care that much about that. It's a good book that helps to paint a portrait of these people that is more true than the one they've promoted in public. Maybe true change is a long way down the road when it comes to Facebook, but if a lot of people stop admiring these people, that's a start.