I thought this book was a most interesting insight into the ways of the KGB. The bravery of Mitrokhin to bring all of these revelations to light must be admired.
Having close relation to someone who lived in the latter part of Soviet times, Mitrokhin's archive even manages to surprise those who were living it day to day.
I enjoyed reading this book from start to finish, but sometimes the level of information given at any one time was too congested, the book jumped from time to time leaving me confused as to which time was being mentioned, but it didn't hinder my enjoyment too much.
My other criticism of this title is that there is an intended second volume from what I can grasp, I feel that as a chronological history of the whole KGB era was presented the introduction of a second volume is largely unnecessary. Maybe a better structure of this volume would have sufficed.
All in all on sheer content I give this book four stars. I really recommend it as criticisms aside, there is a certain "shock value" when you realise that this is fact and not fiction. One of the most interesting, and perhaps worrying, parts deals with the "Centre's" pre-occupations of USA nuclear first strikes both in the 60's and 80's, that was enough to realise that it really is a good job what happened has happened.