I am not going to write an essay as many people who have seen Dune Pt2 seem to have done on here, the majority well OTT! Anyhow, to move on.
The first point I will make is that it's obvious the book/s need to be read before watching both Dune: Parts 1 & 2 (although Pt1 is a little more standalone). If you don't, you would not be able to understand as there is little clear explanation.
Part 2 - The sound quality for the dialogue was often very poor, I had to keep rewinding the recording. The subtitling was tiny, and you can't read subtitles that are on a pale background unless it's in black lettering.
Having said all that, and I have read the books, it was an amazing movie, the visuals were quite incredible, dark in their essence and larger than life. The score was brilliant too. The acting was great for the most part, Chalomet was very good in both movies. I thought Bardem was totally miscast, he overacted and looked like a Greek Antony Quinn which was odd, nothing like the Stilgar character portrayed in the book/s. In fact none of them looked like Fremen at all. Other than that, the directorial quality was simply excellent on the movie, keeping the faith with its literary version.
It needed to be the length it was and I enjoyed it. It was a feat of magical filmmaking. I won't talk about the ending because it would be a spoiler.