First off, the author admits that it is for the academic minded and the very informed lay reader. But, as a trained theologian and a retired pastor, I find that I do not believe the informed lay reader would understand this book, or find it easy reading, unless he/she was extremely well versed in early church history, the history of the early fathers, and understanding of the culture and methodology of the early Christians as they struggled to form a new church based on the life and teachings of Jesus.
While the author does his best to provide a basic understanding of the times and history of Vincent, and to provide a basic background of his times in the monastery and his seriousness as a theologian, I found the brief background to be interesting only because of my studies in seminary so many years ago.
I found it to be heavy reading, but interesting because it added to the depth of my understanding of the early church, and the struggles it went through as the various factions tried to exert their influence over the growth of the church.
I also found it to be a very influential tome for the conservative point of view in religion, something that is sorely lacking in today's ministers and most churches in the mainline denominations. The book of Vincent is a direct introduction into how the modern church can develop and grow and be meaningful to the life of the members of the church. It was, and is, a breath of fresh air to counter the "situational ethics" and the "progressive socialism" of many of the mainline churches. That is to say, most of them are preaching moistly book reports of modern writers of liberal persuasion and psychology, rather than ground their congregation in the biblical background of their faith.
Sadly, I feel that the audience that needs to read this book will not be engaged in reading it because it is not to their way of thinking nor their brand of modern theology. That is a shame since it would be an enhancement of their understanding of the basic foundation of their Christian faith.
As I said earlier, it is heavy reading, but it is doable reading if one takes the time to read it and contemplate on what the author is asserting is Vincent's thesis. Light summer reading at the beach is not the venue for this book.
Serious academics in religion, seminarians, and theologians are the main target audience for the book. I am glad I read it and it has helped me immensely in my understanding of the development of my faith from the early ages. It gave me a new understanding of how I can translate my faith into today's times and society, and still be a strong Christian with a well ground faith in Jesus.
It also helped me to understand the Creeds of the Church that many still recite periodically in their worship. But, knowing the background and development of the early church makes them come alive and to be more meaningful to me.