not great

the acting was fine, but the story....
I realize it's about the relationship between the dude and his robot/dog, but you need to put a bit more work into the world building with logic intact - and as far as logic is concerned, there was none. Essentially, it's a fantasy film. As a fantasy film, it's a relatively boring affair - it's almost like a play - presumably filmed in the social distancing mode, so I'd call this a covid era movie. Oxygen is the best covid era film I've seen thus far, by the way - due to the script/acting. This movie had great sfx, but the script was far from being decent - and that was the main fallacy of the film.
I'd give it 5/10 - I want to give it 6 for the sfx, but I can't due to the script.
In comparison, Cast Away, another Tom Hanks film which could have been made during the covid era, was much better.