More of a 3.5 for me, but I will round up.
Unruly Desires would have benefited from better editing. Not on a sentence-level -- it's perfectly well-written -- but in terms of the arrangement of its contents. Chapters needed better introductions and more connections drawn to other chapters. Some sections should have been trimmed or summarized, or if Benemann couldn't bear to cut, then moved to an endnote.
That said, this book surfaces primary sources that would otherwise be hard to find. As I wrote in a status update, "Imagine you and your friend are in the reading room at an archive. Your friend is really into gay sailors, so that's what he's researching. He has records, letters, diaries, and logbooks spread out before him, and every fifteen minutes or so, he goes, 'Duuude, listen to this!!' and reads you an excerpt. That is what this book is like."
Fair warning, criminal acts were more likely to make it into the written record than consensual ones, so expect repeated descriptions of sexual assaults.