Quick-take: If you are a fan of Orson Scott Card, you'll enjoy this book.
Lanik Mueller is a radical regenerative living in a society that harvests spare organs. He escapes to explore other areas of his prison planet. Sounds like a nice premise for some good sci-fi, doesn't it?
The book is like an Orson Scott Card variant of Gulliver's Travels. Lanik travels to various areas and meets a completely different society.
Some of the sci-fi mechanics I thought were just too fantastical. By the time Lanik finished his travels and phase 2 of the story began, it was difficult for me to believe much of what was happening.
Despite that, the story was well told, and I did find it entertaining.