Neither Christianity nor mysticism holds my loyalty, so perhaps I can at least claim not to have an axe to grind or theology to defend. I found the book utterly fascinating. I would recommend it to anyone interested in the historical foundations of Christianity, in Greek and middle eastern philosophies, and in general anyone who likes to ask questions about how belief systems get started. The picture the book paints of the early centuries of Christianity, with its disputing factions, persecutions, and changing political environment is excellent. It is instructive to realize that what is "gospel" now was controversial then--and the winners, who became the Roman Catholic church, wrote the history. Sometimes, in spite of obvious attempts to organize their vast source material, the narrative is confusing, but it is still a great read. The authors dig into a great wealth of sources which are hardly spoken of elsewhere. I find their thesis that the Jesus story was compiled from pre-existing mythology quite believable compared to the more traditional interpretations.