The series was adapted by the author but a review I read says it's not as good as the books. I haven't watched it.
Let's reach back in time a little. I'm "guessing" you've seen the movie Dune and/or may have read the book. Did the movie follow the book and, what did you think of the series that followed the movie later on? Did it follow the book or did it go tangential and bring in new components that were never discussed? I'll admit, I saw the movie and never read the book. I've thought of going back and reading the book but, I've found that sometimes the movie spoils the book for one reason or another.