I read this book because of the strong reviews I've read, which are on both sides. I needed to see for myself. The story is good, but I can see why there is much concern regarding some of the content. I would recommend it to a friend, as long as that friend is already well-grounded in biblical truth.
Many days we, as Christians, place God in our own borders and say THIS IS GOD... Sadly, this is dangerous. God tells us in His Word, His ways are not our ways. So in saying this, I LOVED this book. Is God embodied in my own defined borders? NO. Is the LOVE, MERCY and GRACE he calls us to embrace as we walk with Him evident in the words of this book, ABSOLUTELY! Why would any person seek a relationship with someone if we knew everything about them? Don't you still enjoy the mystery of getting to know your spouse? Realizing the amazing person your child is developing into that you never saw? and seeing that God's mercies are greater than the borders you once held Him in? Do I take this book as necessary as the Word of God? Not particularly, but do I LOVE the way that the concepts and truths of the Holy Bible are shown in the story of how God beckons to meet our needs in the season we find ourselves? Aboslutely!
I read this book as I was trying to forgive my own father for hurts that cut me as deeply as Mack's father. Through God's mercy displayed in the book, prayers with God and my loving husband, I was able to forgive.
I wouldn't take the book as fact, but if you are able to extend the borders that you have placed on God, it is a good read to stretch your mind beyond itself.