The book equivalent to the movies Beastmaster or Conan the Destroyer.
This book, other than the adult content, would feel right at home next to Beastmaster, Conan the Destroyer, or the like. It's escapism where the hero overcomes adversity, there's very low stakes, but the world is fun, and it's light. Don't come into this book expecting some deep introspection of the human psyche. That said, it's enjoyable and fun escapism - put away the world of greys and moral ambiguity and just enjoy a story where the hero is a hero, and wins in the end (to be continued - not really the end right now).
This story does *not* end on a cliffhanger, for which I am appreciative.