It’s very good. It’s like a Star Wars version of the Guns of Navarone. I went into it knowing virtually nothing about it, having seen only one trailer a few months ago. I left very happy. It’s not without flaws, but I enjoyed it and the third act worked very well. I can quibble about some things, but that makes for fun post movie discussion.
I saw it in IMAX 3D in the second row. I even saw it in the only laser 4K projector theater in New England but I still want to see it again in 2D. I don’t think it will make much of a difference. I didn’t like wearing the glasses, I felt like I was watching through a porthole. Also lots of shots were composed for 3D, so when people are standing around talking, there’s someone’s back in the foreground covering half the frame and it’s very blurry and then there’s someone facing the camera in focus and then there’s background out of focus. The depth of field in a lot of shots seemed unnecessarily shallow. It got much better in the climax. If there’s a 2D IMAX version (I’m not sure there is) I’d go for that.
I left with a question that I can state here without spoilers. The Star Wars universe has some interesting future tech and seems short changed in some other ways. They don't seem to have decent encryption for secret transmissions, so they have to messenger things around. There's a bit of computer tech in Rogue One that just had me scratching my head of why someone would invent something like that. So here's the question. How long until Star Wars becomes the old Flash Gordon serials, where the tech is no longer futuristic?
Update: This is Film Critics Hulk’s take, Film Crit Hulk SMASH: The Slippery, Sloping Story of ROGUE ONE and I have to say I agree with all of it.