Review embargo is gone. They're live now.
RT link just as a compilation no rating yet. 71 fresh 3 rotten. I'm not actually reading any at the moment.
https://www.rottentomatoes.com/m/dune_part_two
Toronto Star's review gives it 4/4 stars (sorry about the paywall).
https://www.thestar.com/entertainme...cle_abb70f7a-d0d4-11ee-b0f6-a7ff2bdd8f4b.html