This is the first episode this season that I've really enjoyed.
The direction, lighting, filtering, was all great and on point. I really enjoyed the story, the A plot was a nice wartime rebel story and the B plot was pretty decent too. I was feeling shades of some of the "retro themed" ST episodes from the 90s. The set design was great on the planet.
The Klingons here are used well - seeing the way they act during wartime here they feel almost cardassian in how they treat the native population, but out also makes sense given what we're told about how they acted during this time. I liked seeing Scotty and Ortega just hanging out. La'an getting help to deal with her problems is good, and seeing her doggedly chase down the truth was nice, though I'm a little unclear in exactly what the chain of events was with the signals and the transporter. Mbenga and una were really sharp on the planet and I enjoyed their acting.
Kor was good. When a new Klingon character is introduced, they need something to differentiate themselves from the stereotype of the honor-bound aggressive wine-guzzler. Kor here stood out in his approach to running the occupation and his presence on the screen.