I was fortunate enough to see it on the big screen here in Thailand. My first movie in a theatre in over a year!
As an added bonus, I had NO idea what the premise was even about, as is often the case -- unless I'm going out of my way to pay attention, information about movies isn't as saturated over here. I only get enough information like titles and filmmakers and it's always a wonderful surprise to see a movie unfold fresh.
In terms of spectacle, it didn't disappoint. The sound, the effects, the action. I was on edge, although that was likely just as much to the fact that the movie's plot demands your attention. I love time travel and philosophical mind trips, so I was all in, and pleasantly along for the ride. I anticipated a few of the "twists" of the conceit, but that didn't make it feel cheap; again, I was delighted when they happened.
So as far as that goes, I liked it, but I can't say the enjoyment was very deep. Even if I was delighted, it was mentally taxing to watch the film, as any drop of attention threatened your entire comprehension. There wasn't much to grab onto beyond the spectacle, and the time travel/physics was both too strict and too loose at the same time. And people better than me have already analyzed to death the lack of characterization and the excess of, well, pretty much everything else. Someone said something something about a tale full of sound and fury? Oh, right. Ultimately it's signifying nothing.
To have the fate entire film industry of 2020 riding on the reception of this movie was poorly chosen.