Messiah is good Children is decent but spotty God Emperor is essentially a fever dream. I was like WTF while reading it but I love how off the rails it went.

The last couple are kind of forgettable.

The immediate prequels (house books) are a fun read and plotted well, but his kid isn’t as good of a writer

The legends books are garbage

The last 2 books that tie up the original series (hunters and sandworms) are not good and are infuriating in that elements from the legends books are reintroduced as deus ex machina bullshit. I saw the twist coming halfway through the last book.

I never read any of the other gap filler books that have been written in that universe. It got tiresome

Everything up until God Emperor is worthwhile with the prequels being a fun appetizer. Read the synopses of the others if you need to know what happens