Not knowing much about Leon Hendrix, my hope was that his intentions of writing this book were pure -- that it wasn't written to make money off of Jimi's name. While I didn't do a lot of fact checking, I found Leon's book interesting. I believe it is an honest story.
I would divide the book into three sections of Leon and Jimi's lives. The first section dealt with their childhood. Leon goes into stories, sharing how poor they were and how Jimi looked after him. The second part is their adulthood. Jimi joins the army, then starts having success playing in bands. Leon doesn't make up stories; he's honest about seeing Jimi only on occasion. Because of their limited time together, Leon is not able to provide a lot of rock 'n' roll stories, but the ones that he has are are interesting and enjoyable. The third section is after Jimi's death. Leon goes into detail about Jimi's estate, how it was mishandled --- the family didn't get it in is entirety -- and the Leon was left off the will as. Since the book is Leon's story, he takes some time to bring closure to his life story. He had serious issues with drug use, and dealing, but was able to eventually overcome his addictinos
My favorite section was the first part which included a number some fun stories about childhood adventures. Other interesting stories, from the adult years, include hearing Jimi's music on the radio for the first time, and some adventures during extended stays at Jimi's place in Los Angeles.
I enjoyed reading Leon's Jimi Hendrix biography. Getting the perspective of Jimi's brother was interesting. If you're looking for stories on gear and recording sessions, then Leon's book will leave you wanting more. If you're okay with a good read from an interesting perspective, then you'll enjoy Jimi Hendrix: a Brother's Story.