Very satisfying. Nothing new, but everything was sustained high quality. In particular, I liked how romance was mostly absent and how there was little attempt to justify Locke's violence. He is ultimately moral enough to be likable, but he is also a violent criminal and acts like it. Definitely worth reading for anyone slightly interested in the premise.
I don't agree that this work is a “masterpiece of tone”—but it is damn close to it. I only give it 4 stars because I was left feeling I wanted something.. grander. A bigger message. It didn't wow me in the way that I expect 5 stars books to. But maybe I'm being naive, because it does utterly succeed at its smaller scope.
My favorite thing about this book is that it focuses on elderly people and I recognize how few stories we tell (and even fewer I consume) are about them. There should be more and this is a good starting place for sure.