I haven't read Hitchens' book, but Buhler's a good guide, even though his high praise strikes me as a bit over the top:
Peter Hitchins’ new book is as insightful as C.S. Lewis’ Abolition of Man, as dramatically interesting as this year’s Academy Award winner Social Network, and as readable as today’s newspaper. Peter Hitchins, the brother of prominent atheist Christopher Hitchins (of God Is Not Great fame) has done a remarkable thing: He tells how he “fell away” from atheist communism, to a robust, thoughtful full-orbed Anglican Christianity... He began “doubting his doubts” only after living in Soviet Russia and seeing the failure of communism, wherein he also saw the failure of atheism.
[H]e successfully engages in a highly emotional topic using techniques not commonly sold in the marketplace of Christian, or anti-Christian, polemics: actual arguments. Christian and atheist alike can benefit from his account of the beliefs a young and intelligent person is pressured to believe. Likewise, Hitchins’ story can help one examine one’s motivation for staying a Christian, or one’s motivation for becoming something else."
Matthew Lee Anderson is the Founder and Lead Writer of Mere Orthodoxy. He is the author of Earthen Vessels: Why Our Bodies Matter to our Faith and The End of Our Exploring: A Book about Questioning and the Confidence of Faith. Follow him on Twitter or on Facebook.