I've been told to not read it by a friend of mine.
I've read Krakauer's other work (i.e. "Into Thin Air" and "Into the Wild") and enjoy his writing style and storytelling.
My understanding is "UtBoH" just outlines the story of two murderers who killed children in God's name from a number of years ago and touches on Mormon fundamentalism / extremism.
So, what's all the bruhaha about? Is it a good read or not?