Seriously, all the dune prequels are just so bad.
If you read the first 2, 3, 4 dune books and enjoyed the (5 and 6 get really weird), and pick up one of the books published after Herbert's death, you will be very disappointed.
I tried the prequels, book 1, never finished. I guess magic does not transcend the human flesh.
Brian Herbert wrote multiple books from scratch. His father left notes too, but nothing that would give him the ability to write multiple novels.
According to his bio notes, Brian is an “acclaimed author” in his own right. Why then outsource to the likes of Kevin Anderson?
He absolutely ruined the books and turned them into “churn them out” fiction.