Story: 3/10
The story was all over the place. I thought it was going to be a typical schoolgirl anime with ships and they would go on missions, but then they have to fight a virus?? It felt like they were making it up as the story progressed and they were trying to drag it out.
Art: 9/10
I loved the art. It was consistent and the ocean looked very realistic, which was a nice touch. I also liked the designs of the ships, although some of them looked very similar.
Sound: 6/10
I liked the opening song and the battle music, but that was it.
Character: 3/10
Too many characters. I felt like they tried to focus on too many at once. I didn't like Misaki as a main character. She was too indecisive and only cared about saving Moeka. I'll give her a pass, though because it didn't make sense how the school made first-year students the captains of some of the ships. How would the higher-ups know if they're ready to be leaders or not? It's obvious that she wasn't fit to be captain of the Harekaze.
Enjoyment: 5/10
I only enjoyed the action scenes.
Overall: 5/10
It was okay. That's all I can say. The anime tried too hard to be a moe and action anime at the same time and it didn't really work. Honestly, I would've liked it more if they focused solely on the action. There's also some drama that I wished could've been more explored upon, but it's either quickly resolved or never developed. For example, there are a few students that questioned Misaki's leadership and there were times where I seriously thought they were gonna mutiny. That would've made the anime so much better. But they didn't and that's disappointing. I would recommend this to people who like action as long as you ignore the stupid parts of the anime.