This episode is one of the best episodes in the modern era of Trek, it's lighthearted it's funny it celebrates Trek and it's done so tastefully that I genuinely have nothing bad to say about it. It reminds me of Trials and Tribble-ations.
Plus that line at the end where they tell Una ad astra per aspera and that's why boimler joined Starfleet is just the right kind of emotions.
Honestly, they smashed it in this episode and ofc the 2d animated intro was chefs kiss.

On the whole a solid episode and the Scott appearance was very surprising and well done.
However why the hell is Christine the only survivor on the cayuga, it makes no sense at all.
Also the fucking cliffhanger is ridiculous