I very much liked this one, and pretty much raced through it. It picks up just minutes after the previous books end, and things happen very, very quickly.
I liked getting to know more Vattas - Aunt Gracie is going to be particularly fun, I think, but I also liked Stella and Toby - but I'm not sure about Rafe. He seems to be a possible love interest, too, which I'm really not into. I don't know that I trust him as an ally, but he's a manwhore spy type, who Stella seems to have a thing for (and a previous relationship with), so I have no interest in him as a love interest for Ky. I really hope it doesn't go there.
I like her crew, and the Mackensee mercs (though they're a little stodgy about the letter of marque in a way that seems like splitting hairs to me, given their actions in book 1, boarding ships and killing people, etc), but I wish Pitts, the sergeant from book 1, was back here. And the overall plot, the big conspiracy, fascinates me. I can't wait to see more of the edges peeled back.
Ky is still young, inexperienced ... but learning fast. She's hard on herself over errors, but that's not a terrible thing - mistakes can easily get her people killed, so she needs to make sure she learns from them. And she makes solid decisions in the moment ... even though I agree with her in hindsight, a couple of times, that maybe a different choice would have been better. In those life-or-death moments, what matters is that she made a plan in a split-second, executed it, and saved her ship and people. Studying how it could have been better is how you learn, but it doesn't mean your action was wrong. It just could have been better. That's what I mean when I say she's learning fast, and she doesn't flinch from looking at her choices with a fair eye.
Racing forward into book 3.