I really appreciated the book. It doesn't have answers, but instead talks about the hardness of a terminal diagnosis (or any significant suffering), how there aren't any easy or good answers, while also struggling to make the most of each day, and being surprised by God's presence (through others).
The following is an article Bowler, which probably served as a catalyst to the book, can be found here: https://www.nytimes.com/2016/02/14/opinion/sunday/death-the-prosperity-gospel-and-me.html
The Well gives a helpful review: http://thewell.intervarsity.org/arts-books-and-media/living-gracious-uncertainty-review-everything-happens-reason
