Okay I binged it now that all the episodes are up.
Overall nicely done. Brings things right to the end of Babylon's Ashes, wraps up the Free Navy and also shows the Transport Union forming (and with it a fundamental shift in the governance of the Solar System). Obviously with them having to write Alex out they had to do something to round the team out, and we got Clarissa in S5 and this season Bobbie Draper. One big improvement in Season 6 is she is much better utilized. Season 5 was also a better use of her character unlike the misuse in Season 4.
Weird as it may sound I would just as well leave it here. Don't try to get another season funded because the next book involves a 30 year time jump and also brings in the loopy Laconian Star Empire.