I kind of hated the battle scenes, though. I didn't like any of the sardukar fighting scenes, or how the ships exploded etc. I don't remember the book well enough to know if it matched how it was described, but for visual mediums like movies instead of books it felt very fake.
Agreed about the mentats, and the ornrithopters. The cinematography has a lot of style but I'm honestly not sure if this particular style is to the movie's benefit or not. I can imagine it having looked a lot of different ways.
Overall the pacing of the movie felt...boring.
I'll watch the sequel but I'm not hoping for award winning movies at this point.