My one star review is not for the writing, this is as good as all of the Dune books (more or less).
My one star is for the quality of the conversion of this book to kindle format. There are typos everywhere, multiple times in every chapter. Herberts prose is completely shattered. His thoughts and prose can be challenging to grasp but the numerous typos and word substitutions make this one not worth the effort in ebook format. Avoid avoid avoid.