The plots are intricate and even though we switch perspectives a lot, I never found it confusing and always knew who was speaking and where they were. The emotional througjlines between lines and humans are good and I like where this series is headed vis a vie non-human intelligence.
However, both the romances are very poorly written. The super savvy princess is in love with her established father figure is a gross trope, and the dynamic is almost Anne Mcaffrey-like in its cringe factor. It also doesn't fit with any of the rest of the book. Politically, it would be a terrible idea to marry your fleet admiral. He's already established as her father figure (the ages are unclear, but it was mentioned previously that he basically raised her) but making him into her lover reeks of the "men and women can't be friends without sex" trope which is one of my most hated.
The other pairing is politically ok, but not great ssecurity-wise. They also don't really earn it. Like, they definitely spend a lot of time in the same room together and they've each saved each other's life, but besides some weirdly jealous glaring when someone else is called his girlfriend, it was not foreshadowed at all. (Jealousy as an indicator of love is also one of my least favorite tropes). The fact that she has been contractually obligated to almost never leave his side for 3 books makes it feel kinda stockholm-y too.