For those interested in the genesis of Freemasonary it will disappoint. However to know how recent (1600) Freemasonary went through turmoil and its new beginnings its a good book.
The review shows history (if a little biased) and can aid those who wish to understand the Craft.
Freemasonary is not a secret business as this book will show, but what is galling to those who are detractors is that the moral code is quite high and the stories illustrative of their own shortcomings.
You can take this book either way, Devil Worshippers or Moral Keepers, whichever it demands close reading as the English is at least 100-years old.