Girls are ships. Ship them ships!
Can’t say I’m particularly impressed. I was completely bored for the school life segments. There’s nothing interesting about these characters, each has a gimmick and looks cute and that’s it. There’s not much of a plot either, just the girls hanging out at school.
When they go to battle it gets a bit more interesting. But still, there are no stakes to this battle. The villains are laughably empty (the main enemy doesn’t even move or speak or appear to have any motivation for doing what she does) and there are no stakes to the battle, the girls get hit by bombs and all that happens is their clothes rip.
Why should I care? Kancolle doesn’t have an answer. It’s just to enjoy cute girls doing nothing in particular.