Tim Challies’ book review of The Shack
Here is an excerpt from Tim Challies review of The Shack (by far the best review I’ve read):
Despite the book’s popularity among Christians, believers are divided on whether this book is biblically sound. Where Eugene Peterson, Professor Emeritus of Spiritual Theology at Regent College in Vancouver says it “has the potential to do for our generation what John Bunyan’s The Pilgrim Progress did for his,” Dr. Albert Mohler, President of Southern Baptist Theological Seminary says, “This book includes undiluted heresy.” While singer and songwriter Michael W. Smith says “The Shack will leave you craving for the presence of God,” Mark Driscoll, Pastor of Mars Hill Church in Seattle says, “Regarding the Trinity, it’s actually heretical.”
read the full review here: http://www.challies.com/book-reviews/a-review-of-the-shack-download-it-here
solafivereformed 
I threw the book on the floor numerous times while reading it as I could hardly believe the heresy. So many people were reading this book and praising it with accolades. I was sick to my stomach realizing the day and age that we now live in is wrought with a body of believers that can’t discern truth at its most basic level.
I couldn’t agree more. I made it about halfway through the book and was so offended at the horrific manner in which The Trinity was blasphemed that I had to give up the effort to read the thing. If I didn’t know that God will sovereignly preserve His church, the popularity of books like The Shack and Jesus Calling would cause me to lose hope altogether. But, all praise to our Lord, He will and is preserving His church.