I watched it again this weekend as well, but I'm coming from a very different place. Had seen both prior attempts to film Dune, have read all the books. And I'm still not sure about this version. Really looks good, but... Really cast well, but... Really good score, but... Really good adaptation, but... It seems like for every area in which they did well, there is one glaring exception. Easiest to explain, is the cast. Nearly everyone was perfect. Isaac, perfect Leto. Momoa, perfect Idaho. Brolin, BORN to play Gurney Halleck. The problem is this is Jessica and Paul's story, and they are the weakest casting links.
Still, looking forward to Part 2. Although, fair warning... the part of the story covered by Part 1 is easily better in both prior attempts to put Dune on film, than will be covered by part 2. I, frankly, can't believe they ended the first part with Paul dueling Jamis. That NEEDED to be how they started Part 2. And to separate that from the scene distributing Jamis' water... has already killed what should have been one of the more meaningful scenes in the second movie. Plus, the callback to "may thy blade chip and shatter" will now fall very short in the final duel as well.