I've been why I have it a soso rather than thumbs up.
Here is my conclusion:
The plus side has been the research and the first hand accounts from the people that were there.
But a more satisfactory book would have fully answered or left fewer unswered questions.
eg:
Impact of the war on Auschwitz
Impact of Auschwitz on the war
Immediate treatment of survivors by liberating forces
Compare & contrast this treatment by Red Army and Western allies