Don't be too harsh on the TV writers until you know how far they've moved from the source material. I read all the mainline dune books earlier this year, while I do recommend the chronological order read through, sometimes the writing struggles to do the concepts justice. But the world is big and interesting and gets more standard space opera like and less Warhammer-like in the prequels and more Warhammer like in the sequels. I'm excited for the show. Lots of good stuff to go with if done well.