I was vibing with this pretty well until the last 30% or so. The first 70% of the book or so was fun enough. I enjoyed the introduction to the Seytons and Seytonna. I liked some of the mystery that was built up about the planet, the ship, the Seyton's All-Mother, and Zuran and Olan's pasts. 

Samantha was mostly alright though I think mention of her learning about Seyton culture should have come much earlier in the book. Zuran and Olan could have also worked on their communication with each other (loathe that dreaded miscommunication as source of conflict) but at least it was something that was built up over a long, long time and has sociocultural roots, and not just a single overdramatic talk or something.

All of the below is about the last third of the book.

Several new things are brought up and never addressed, things that are completely contradictory to the whole way the Seyton society works, which is the Big Conflict of the story. And they just... don't talk about it. People go missing and then nothing comes of it after it's pointed out. Characters say or do things that contradict themselves.

The plot felt rushed, like there's a ton of action happening super rapidly all of a sudden and time skips happening that make it a bit chaotic and needlessly confusing.

There's an unnecessary rape scene in this that adds nothing to the plot and it really pissed me off. It's done to a young girl who barely qualifies as an adult that's introduced to the story for the first time 75% of the way through the book FOR this scene. Her entire existence as a character in this book is to be raped. We see her one more time before the end of the book but without either scene, the rest of the plot stands on its own. I'm not sure what it was supposed to add??

I was super frustrated with Samantha at the way she let Marsel do wahtever he wanted. She supposedly didn't like him so why was she constantly letting him touch her and speak to her that way? Why did she trust him so much? Was it seriously not super obvious he was up to no good all the damn time?? She was seriously blind to what a shit person he was and that was prior to the horrible things he did to the Seytons.

The whole last bit of the book felt like they didn't know how to really tie everything together or whatever grand plan they envisioned wasn't executed as well as it could be.