I just finished watching S4. I hadn't liked the first few episodes but it got really good by the end (or at least I thought so!)

They crammed 2 books into one season which is why it seemed rushed, or heavy-handed. No time for subtleties when there's so much plot to get through.

And yup, I never warmed to Holden and Miller either. (Or Holden at all, TBH. HE just doesn't read as the "hero" Avasarala makes him out to be.