I have a regular Kindle and the download took "forever" compared to the nearly 200 other books I have on my Kindle. I called Amazon and reported the formating problem even after the long download time. It just isn't usable as it is, now. Hopefully, now that Amazon knows of the problem they'll correct it. What little I was able to read looks like a book that would be VERY useful to own.
FWIW
Dale53