Just saw it in IMAX, well that was Epic in every sense of the term.
The casting is really good and Villeneuve let them take their time on screen, it is really a slow burn with heightened tension.
The OST play a good part in making the planet and the villains feel oppressive and great performances from all actors around.
They did the opposite of the hobbit movie, it covers about half of the first book, which is not that long to begin with.
There is quite a bit of exposition but it is dulled out over the course of the 2.5 hours so it's ok.
It you liked Blade Runner 2049 , you'll probably love this one too.
The best part is how they really built a world that feel lived in, and they are using all kind of techniques to sell you on it.
The production design is fantastic and it's at the level of Avatar in visual world building, with the advantage here of actually having a plot.
Now please, go see it, all of you. It has to work so I can go see the next one.