I got to see this at the IMAX when my bike was getting serviced and it took longer than expected. I enjoyed it. The opening sequence is excellent, and introduces Brad Pitt as a cool-headed space-pilot. But he also has existential doubts, centred around his distant father, played by Tommy Lee Jones. TLJ is really good, and never once breaks into his manic cowboy act that I find rather annoying.
The film is slow and stately, but takes place in space so is still exciting. A bit like Space Odyssey or Gravity, but not Solaris which is still boring. It's also set in the future where space travel is relatively normal. Could it happen in our lifetime? Probably not.
I have a few qualms about the plotting, which seems un-necessarily contrived. There's really no reason for Brad to go to the moon on the way to Mars, except for us to have a good look at the moon and see some Space Pirates. I also don't know why later on the crew of the shuttle that he boards all decide to kill him. Space madness perhaps? And the whole thing could easily have been made without the plot-device cosmic surges.
Overall I thought this was elegant and interesting. Not quite Bladerunner 2049 but I'd watch it again, on an even bigger screen if possible.