BookLife, a website by Publisher’s Weekly, has an article titled "The Indie Author's Guide to Paid Reviews" that might be useful to you. It includes advice on Pros and Cons, How to Prepare, and The Major Players.
Speaking of reviews, here’s a new unpaid one from Amazon for Mastering the Craft of Compelling Storytelling:
A new review from Amazon for my new Mastering the Craft of Compelling Storytelling:
"Thank you Ray Rhamey for putting into one book so much of what we need to know as writers. This book, unlike a number of craft books, is an easy and entertaining read. More importantly, it captures in one place so much great stuff to take your writing from 'meh' to powerful. I found so many answers in my first reading and you can bet I'll be using it as reference in the future."
For what it’s worth.
© 2015 Ray Rhamey