Well-intentioned and readable, and the central conceit is genuinely moving.
My reservations are about the prose, which tends toward the aphoristic in a way that I find reductive — complex emotional truths compressed into sentence-length insights that feel true only until you look at them closely. Haig is clearly a compassionate writer and this book has helped a great many people, which matters. But as a novel rather than as a piece of therapeutic writing, I wanted more resistance in the material.