Richard, I'm one who downloaded & didn't pay. Couldn't really get into the book. Not necessarily your fault or bad writing. I just have peculiar taste. E.G. the very popular "Lonesome Dove" for me was a very poor read (even though I did read it through because it was so highly recommended). Also I can't get into any of the very popular Harry Potter books. So don't stop writing because of my lack of enjoyment of your writing. You're in good company.
Sorry