Top positive review
Very Informative, Well Written, and Well Organized (and Great Photos in the PDF)
Reviewed in the United States on March 9, 2019
This book contains a wealth of information. I've only had it a day, so I'm still learning, but I've already discovered a solution to parts being knocked over (Z Hop when Retracted).
One reviewer wrote that the photos are poor quality. However, the author promptly provided a PDF containing high quality color photos on request. Thanks, Sean.