I think of myself as a Muslim, and I was born, raised and (initially) educated in a Muslim country where Islamic studies is a part of the curriculum -- however, this book provided me with an insight into Islam that I had never come across before. Its beauty lies in its attempt to present Islamic thought and understanding as the Islamic tradition itself has conceived -- the Islamic tradition of the past 14 centuries, and not just of recent theologians. The best aspect of the book is that it tries to present WHAT ISLAMIC CONCEPTS ARE, rather than why they are right (as some Muslims often try to show) or why they are not so right (as some non Muslims try to show). And it presents the concepts in a way that is comprehensible to the modern mind (with all its specific ways of looking at the world) but without taking away from Islam -- i.e. without CHANGING or HIDING those aspects of Islam that the modern mind might find displeasing.
Because of these reasons, I think the book is a must-read for anyone interested in Islam -- since it concentrates on HOW ISLAMIC SCHOLARS HAVE ELUCIDATED ON ISLAMIC CONCEPTS, without passing any kind of judgement on these concepts, it is extremely illuminating for the Muslim as well as the non Muslim trying to understand Islam -- the reader can pass his own judgement. It is for this reason that I have already bought/ recommended this book to many close Muslim friends/ family, and this is the one book that I plan to give all my non Muslim friends to read as well, just to make them understand my religion.