Owlings' book is a thought-provoking, and not infrequently tragic, account of Nazi era Germany as seen from an often unrepresented viewpoint. Yes, her interviewing may lack some subtlety, and yes, she may not have the firmest grasp on modern German history. However, her naïvety may have allowed her to ask the questions, and have them answered, that an interviewer more concerned with propriety would have avoided.
Two subjects I wish she had spent more time developing in her interviews are the question of the "conquests" of the Allied occupying forces in their respective zones, and the forced migrations westward from East Prussia, and later, East Germany.
Overall, especially for somebody interested in the events of the 1930s and 1940s in Germany, this book provides a decent account to the non-historian.