I brought the book to a Phuket trip last year, and I enjoyed it. It was a stronger collection than her previous book, Wanderlust. The Guardian reviewer puts it in a nutshell:
De Vaca stands at the heart of this book, not just as a symbol of the plucky adventurers and mingling nationalities that created modern America, but as an exemplar of Solnit's strongest theme: getting lost means accepting change. "The things we want are transformative, and we don't know or only think we know what is on the other side of that transformation.