Sci-fi falls into a few categories in my mind. There is suspenseful sci-fi, that is all about action and intensity. There is a discovery sort of sci-fi, all about exploring fantastic worlds and cultures and philosophies. And there is character driven sci-fi, where the futuristic setting serves as a marvelous backdrop for human stories.
This book is somehow none of those, and as such is a rather flat, unemotive, walk through a spaceship. Most of the action consists of running against a clock, not any perceived threat, and is not very engaging. While some in the group died, it was usually from just exhaustion or sustained wounds while traveling, not because aliens or action. The world building wasn't deep enough to let me get lost in a fantasy world. Long hallway. Weird elevator. Hallway. Engines. Hallway. Subway. Weird light show. (That is literally the entire sequence of travel) It was not otherworldly enough to make it interesting. Additionally, the book is set slightly into the future or an alternate reality or something, so I lost my grounding in what was supposed to be normal. Aliens made a half chapter appearance, where their sleeping bodies were seen but not interacted with.
All this serves as a backdrop for a LARGE cast of characters who's backstories are glanced at as needed (with absolutely no foreshadowing to ground them. Am I supposed to feel something when a character thinks of staying and dying because I am suddenly shown his family doesn't love him as he thinks they ought to? It just confuses me). I never got everyone straight, and certainly felt no attachment to any of them.
Things happened without good explanation. So the subway shoots ahead at a force that can kill you potentially? And a man imaging God in a place of creativity (can't think of a better way to describe that) causes an explosion because... reasons? And the ship is kinda being nice to them (Read: the ship isn't even an antagonist. What are we fighting against again?) but also isn't really awake (because it is sentient but never actually wakes up). There isn't a climax.
And all the lose ends! In top of the large cast there were characters who were introduced and then left to the side after you thought they might be important. And what happens to the group that got separated from them? And with all the damage done to the spaceship am I really expected to believe it lifted off without a hitch?
Anyway, it's been too long since I've been able to rant about a book, so there's that I guess?