I have a lot of mixed feelings with this episode
Spoiler for Episode 12:
-The fight is a tad too dragged... that's because the pacing was a bit all over the place with way too many dialogues forcefully inserted in there.
The directing was also very confusing, with lots of transitions to different characters to the point it was difficult to keep track of who is attacking and what's left with the enemy task force.
-Taihou's screentime was, as expected, very limited so her own presence and the admiral "survival" are simply... there.
-Hinting that Wo-kai is actually Kisaragi is a bit... well...
-At least we got some "characterization" for the princess who got a "promotion"
And it looks like we will have a second season or a movie.