Agreed on Kirk. I kept imagining Shatner saying his lines and it fit with the character, this actor's just not making any attempt to emulate the mannerisms etc., which is probably wise, because people have been doing Kirk impressions since the 60s and it's just a joke no matter how you play it now.
I liked all of the parts of this episode that weren't nebular space babies, which April called while we were watching it during the first establishing shot of the refinery. What a rubbish old plot to recycle. I know that the point of this episode was Uhura's work-life balance and Una getting over holding Hemer against Pelia, but there's no reason the episode couldn't have been just those things. The need to insert a stock plot backdrop just wasted time going through the motions of it, and it distracted from what character-relevant story Uhura might have really had in this episode.
April and I were both anticipating the bit where we got to see the Bussard collectors in action, and then we did and that was great. I still think they're annoying as a piece of tech cruft but it's good to finally see them in normal action. We heard about it a lot on episode in Voyager but never saw it from the outside of the ship.
The most egregious moment of having to fill all the checkboxes for the required plot was the need to destroy the refinery at the end. There was no hostile force, virus, or deliberate sabotage intending to keep the refinery running, just something that accidentally got broken by the guy who successfully sabotaged the refinery to make it stop working before they successfully repaired it. But just turning it off wasn't dramatic, so the lever got stuck. It's fully within the crew's means to replace the lever, but we need an explosion for the finale, so they blow it up with photon torpedoes. If the space babies don't like spending time in the centrifuge, I bet they ******* loved being heated to warp plasma temperatures. Utter nonsense. It's not like Starfleet can use or move the refinery, at best they could recycle the parts, so destroying it isn't even a problem, but what a complete nonsense excuse for some meaningless pyrotechnics.