Outstanding. I have seen it 5x already. Acting, direction, action, pace, structure, cinematography - all on point. A couple of minor nitpicks: 1) I thought the Zimmer score was a step down but still excellent. 2) Chani's hostility towards Paul towards the end were a tad overdone. It seemed like the filmmakers were attempting to mitigate the "white messiah" trope with a cynical 'native' character. Yet in the books, Chani did have internal struggles between Paul and her people (Fremen), so i'll give the movie half a pass. But no, I didn’t like the Chani hostility. And there was too much of her (but I guess Hollywood can’t have the last shot be on a non diverse person nowadays,can they?). Overall though, I have enjoyed Dune 2 more and more upon repeated viewings.
While it may not quite reach the heights of Part 1, it's 95% as good, and stands as one of the finest cinematic experiences of the past decade.