Okay, so I really enjoyed this episode.
Here are some thoughts:
1) Yeah, yeah, budget tightening. Who gives a crap? I'd rather they save money on existing sets and give us interesting little lore tidbits.
2) I'm a bit ambivalent on the Breen reveal. Don't find the "solid" makeup very interesting, but the "gelatinous" look was just, wow. Really cool. And it fit with my headcanon about Breen using refrigeration suits to keep themselves at a certain physical state.
3) Cool story for ISS Enterprise. It's easy for me to buy that it traveled through space AND time, a'la the Defiant, and I like the idea of Terran refugees making it over to the Prime verse (Which was the only cool concept with Mirror Bareil on DS9).
4) People can complain about "memberberries", but at this point for Trek it's a feature, not a bug. There are enough dangling plot threads over the past 55 years that Trek could cannibalize itself for another 50 for story ideas. Yes, it is possible to go overboard, but I'd rather (for instance) finally learn more about the Breen than just make up some new alien race.
5) It seems comically ironic that, after all the bitching I did about not seeing more of Owo and Detmer, they appear to have been written off the series without even showing up once. Even Gray Dishwater got more of a sendoff.
6) Between this season, Picard season 3, and Lower Decks "Parth Ferengi's Heart Place" and "Hear All, Trust Nothing", I'm very happy as a DS9 fan to see it finally getting some love in other series.
7) The "warp pod" is an issue. Why work so hard to create a problem, and then magically resolve it off-screen? Sometimes they make Moll and L'ak look smart, other times they just decide things will work out because the plot says so (Moll on Trill, that warp pod).