The scholarship is truly outstanding and deals with many neglected areas (at least for non-specialists), such as the Lublin reservation and the creation and function of the Nazi ghettos.
My one criticism is that the book could have done with a fuller and firmer conclusion. The book goes into great detail about the various anti-Jewish "initiatives" of different agencies in the polycratic Third Reich and the various decisions - some of them rubber-stamped after the event. The book is not a particularly easy read, and some readers could just end up with the impression that Germany somehow stumbled into the Final Solution, which is certainly not what the author is saying. (Rather, it arose out of a total and overwhelming obsession). Despite this, five stars.