One so-so episode (Jeremiah) and two great episodes. A Human Reaction is one of the top 3-4 from Season 1 and one of the first times you really get a sense of how good the show might become and how right for each other John and Aeryn are.
Chiana finally makes it on board. And, let me second Temis
's familiar battle-cry for more Nebari storylines. I would have much rather taken a 6 episode Nebari arc than the dren we got in the first 5-6 episodes of Season 4 and then dovetailed that arc right into the war arc they went with.