I now have my copy of the book but have only begun to go through it. My eye was caught, however, but this Stoic v Epicurean comparison chart near the end of the book. In particular, the description of the Epicurean "purpose of ethics" as "freedom from harm" and "happiness" as "freedom from anxiety and fear" strike me as grave distortions of Epicurus (but in accord with the modern majority view).
Much of the rest of the chart looks generally Ok to me, but the entire chart seems a little "loose" in meaning. For example, is the main concept "Orientation" clear enough to mean something?