I am whelmed. I liked everything about it except for what was ostensibly the "main event."
Putting Spock in command? Interesting choice, I continue to enjoy Peck's portrayal as younger, less confident Spock. Love Pelia. Can't wait to see more of her. Love that we're back to a more traditional Klingon appearance. Love the updated D-7. Good use of La'an, interesting to see a planet which is firmly stuck in the wake of the Klingon war.
But then we get to the main event: Chapel and M'Benga are in a jam. And so they just... take drugs and fistfight Klingons. Yawn. This is the head doctor and the head nurse we're talking about here, and you're telling me there wasn't a more scientific or medically oriented solution? I mean sure, I guess doing some stims counts as vaguely "medical," but that's not really what I mean. It would have been interesting to see them exploit Klingon biology or Federation medical tech in a more thoughtful fashion, rather than just go bonk heads.
But, eh, that's a minor blemish on what was otherwise a solid hour of Trek. I do think it's interesting that they've managed to draw out Una's trial arc into three episodes now... hopefully it's just three? There are Strange New Worlds out there to visit.