It's freewheeling and quite a homage to TOS. Maybe a little rabidly paced in order to meet the half-hour time slot (so there drops one point).
The Mariner prison escape cardio plan was awesome. The arch bleeping in time with her about to say a NC17 word was perfectly timed. So many moments where this show shrewdly puts in little wonderful moments of all sorts...
The Gary Mitchell stuff was a hoot. Reminiscent of "The Naked Now" or other TNG1 episodes where the crew whisk up a situation from "the old Enterprise" in a matter of seconds, but LD has a certain confidence rather than the TNG memberberrying the scene excessively. Whether I react the same in a later re-watch, but the TNG moments often felt cringey whereas this did not.
The head detaching to fly into space moment was the icing on the cake. So in tune with TOS and yet takes an extra step (so to speak).
Obviously I yummed it all up.
Most of it. When Jack gave everyone his face -- meh, it works in the narrative but was a bit much. If even needed.
Boimler's bunk being a mess was a nice touch.
There was one scene earlier, with the Apergosian guy - crud, the words just leapt out of my ear and are (proverbially speaking, not literally) dancing on the floor while looking up at me in derisive laughter. I'll have to rewatch the scene, write it down this time, then remember to find the notepad and then post the observation. It was a good one, though. :\
The idea points out fairly well that TNG-era has characters way too "forcibly" liking one another. Unless one is Barclay or Ro or Shelby, et al. TOS wasn't as saccharine chummy-chumm-chum-chummy, but they kept it under better control. Partly because they never explored it beyond two characters on any regular basis; in TOS they just did their jobs and there was no clique worthy of "F*R*I*E*N*D*S". Plus, they still, sold how McCoy and Spock could be genuine besties all while both traded significant barbs at one another over the course of TOS. This LD episode comes close to that, ity might be the start of something for later on, but let's see more of Mariner and the Andorian she spat about working together and see what organically grows. (I only just got the set and have started really digging in. Thnkfully YT has few reviews, though one started with season 3, he covered it, and I'm already drooling in anticipation...)
9 out of 10. Maybe 8. The show's still got it. Even if Jack survives.