I dutifully read as a young man with friends Dune, The Hobbit and Lord of the Rings, and the Foundation trilogy, though I was never (I confess now) an afficionado of any of these great works. I much preferred other ponderous, wordy literary giants with perhaps equally serpentine plots such as Russian novels. Tomato, tomahto. As a condition of one relationship I was in I viewed (and more than once) the two principal film adaptations of Dune, and liked them well enough, in spite of the public and critical outcry about them. (The relationship lasted, and I am now co-owner of copies of these films).
And I have recently viewed the most recent film, in the theater, and liked it quite a bit, but I have to say (now calm down here) that while I liked the hot young actor playing Paul and I liked it visually and I liked the soundtrack, I thought it on the whole it was pretty slow and dialogue-heavy, as I recall feeling about the book. If you had not read the book you would not really know much about what is going on.
This graphic adaptation is announced by Frank Herbert's son in his introduction as the "definitive" comics adaptation, which he did with Kevin Anderson, and was illustrated by Raul Allen and Patricia Martin. They name-drop the comics classic artist Bill Sienkiewicz as consultant, but this is by no means (even if this only the first of three graphic novels for the first book alone) a great graphic novel. It gets at the heart of what is going on, but is not remarkable, and the thing the adapters make clear is that they did the script and then auditioned several people to do the illustration.
That can work sometimes with adaptations, but the process thus often lacks a true sense of collaboration or synergy, it makes for a pretty flat creative process, artists as hired guns. I am not saying I think this is terrible artwork--Allen is a pro--and this book will sell a lot of copies, released as it is at the time of the new film version, and I am not even saying I am opposed to hiring illustrators to do comics jobs, of course. But it just doesn't look exciting or inventive to me in the way other fantasy comics, such as Monstress. I liked it just fine, it's good, not great, imho.