I thought this was a fairly easy read, chocked full of well reasearched facts. However when hard documentation was not available, well argued reasoning is injected to make the intended point. I've read many treatments on Drake and find this to be the most definative.
While there are many missing pieces to Drakes life, the author really gives a good picture of the man and his times without putting him on a pedestal or dragging him through the mud as many authors try. In other words this book is not based on just trying to get another "ANGLE" to Drakes story.
I think you be pleased you read it.