Just reading the classics. Although scifi is not my favorite genre, it makes sense to read what is apparently ranked as the world's best-selling science fiction novel. Overall i enjoyed the first book. I wouldn't go as far
as say it's a "great book" , but it's enjoyable. I enjoyed the characters, world building and the
environment/ecology part of the story (apparently Dune is the first book which deals with the environment/ecology subject). The story both drags in some parts and rushes in the other (especially in the second half) but it's not that bad.
Dune Messiah, on the other hand, it's a completely different kind of book. I understood why the book is written like that (the whole book basically "deals" with the psychological state of the main character after the events of the first book) but , in the end, the book is very different from the first one. It (mostly) lacks "action" and the tone is very different from the first one (not in a good way).
Overall, i'd say the first 2 books are not good enough to make me want to read the rest of them.