The reviews of the book "Missing - The Jaryd Atadero Story" express strong emotional reactions and praise for the author Allyn's faith and courage in the face of adversity. Many readers were moved to tears by the story and admiration for how Allyn handled the tragic situation. The book is praised for its emotional weight and ability to make readers feel Allyn's pain. Readers felt they gained hope from Allyn's example of conducting himself with courage, grace, love and forgiveness in the face of such a difficult reality.