I feel like most of the characters I like aren't as much the core 4 mains as of the start of season 3. Gunny is getting better, I like Sadavir as an antagonist feels straight up like he was plucked from the 24 series type patriot antagonist I like. I like Chrisjen as well as Drummer and Fred. Also love Dawes as an antagonist and lastly liked punished Miller when he just stopped giving a fukk. Out of the main four I really only like Amos. To me the other 3 are just kinda there.
The first half of season 2 was better than the second half. The season finale of 2 was actually weaker to me than the crash on Venus and lead up to it.
I'm hoping they further develop the Martian side of the conflict because it seems like the major players in the cast are either earthers or belters.
I also hope they find a way to make Holden, Naomi, and Alex more interesting though I know the actor that played Alex got into some trouble and was removed from the show so I'm guessing that doesn't go so well.
Lastly I'm bummed this will go unfinished. I'm guessing this wasn't as popular for Amazon because they closed it out with a short final season and are leaving plot on the table. The actors will probably land other commitments and it will be a challenge to continue it further if they let it go too long. Might just switch to the books to close out the plot.