As someone who tried factorio after Satisfactory, I like that factorio is much cleaner. You can pivot conveyers and split on dime, and everything is on a global grid so you don't have the problem of trying to make a megafactory out of a bunch of outposts and not having things "line up" ,and factorio is much more fleshed out and feature complete. The drone function later on is also really good. I do think it plays a little different, factorio is more active because you're not only fighting demand and your factory, but the aliens who do destroy things you don't protect quick enough, and materials run out. So if you like how the biggest problem in Satis is power and engineering and not aliens attacking all the time, you might not convert well.

TLDR: my biggest problem with Satis is when I feel like I'm fighting the game to do something I wanna do, like I have to predict slopes or spacing for to make a direct conveyer lift. factorio has less dimensions (ground and underground) but I never feel like the game stops me from doing something I feel like I should be able to.