I loved the Martian and PHM, but strongly disliked Artemis. First, I don't think he wrote a woman very well. To make a strong female protagonist as a man, you just write the book with a male protagonist and go back and change pronouns appropriately to match the sex and sexuality for the story you are trying to tell. There was too much of him inserting his ideas of what a woman would think. Second, she is a criminal. Now, in context her story is a heist story, and a rags to riches story, but she never has to "science the shit out of it", nor "figure it out" using a polyglot level of intelligence. She isn't stupid, either. She just doesn't lend to the same fantasy of Macguyvering the other protagonists do in their respective books. I even had the benefit of hearing Rosario Dawson for the Artemis audio book, which I was really excited about, and even she couldn't make me really like the character. Finally, the cast surrounding her character weren't cheering for her like those around Grace or Whatney, because the stakes weren't the same, or they were only doing it because they liked her sexually or were willing to use her as a scapegoat or a pawn.

That last point might actually be the defining reason many Weir fans hate Artemis. The Martian was about the world trying to save one guy. Project Hail Mary was about one guy trying to save the world (well, two guys trying to save two worlds). But Artemis was about a girl trying to get a better apartment.