This Review seems to indicate the volume considered is a little lite on the substance and content to Hitler. Possibly a result of the Review in brief itself, without reading the volume under presentation.
Another volme well worthy of time and attention is Shirer's seminal work from decades previous. Shirer was a journalist[turned historian ?] who spent his earlier years in Nazi Germany and saw much of it in person.
The comparison of these two would think, can confirm or otherwise considerable of the content brought forward in this volume.