Gripping claustrophobia of Harlan Ellison, premise of Dark Matter... (The first tv series)
REBELLIOUS NATURE is an easy read, narratively, the story of a group of mysterious strangers on a ship, all with mysterious pasts and their own reasons for forgetting, or wanting to forget.
The premise really reminded me a lot of a video game I played ages and ages ago that's based on the Harlan Ellison story "I Have No Mouth and I Must Scream." Everyone has a pretty dark past, except Seirene, the girl they've been tasked to find, and, perhaps save from a dire fate.
Most of the worldbuilding is offscreen, and the povs are all very tight and emotional responses to the characters' pasts, and within that lens, I didn't get as much of a sense of the galaxy outside, except that it has various brutal factions, crime and militaristic societies. It's a gritty place, but again the personal stories make this more of a character study. I think this kind of novel works really well in space, caught on a ship together, these people have no one but themselves, the ship's AI, and--well I don't want to spoilt it.
But there's a remove in the prose that I am really on the fence about. I think it works with the plot and the setting, but there were times when reactions seemed muted, or not as personal as I was expecting. That's not all bad, just not always to my taste. Everyone is very powerful and very special and there for Reasons. Maybe Planetscape: Torment is an example of the vibe? (I didn't finish the game, so unsure.)
Diehl sets things up nicely for a sequel and the twist at the end was well done, with an inevitability you see coming after you've read it, not before... And that's a how a twist is done!
Disclosure: this is an entrant in the SpSFC#4, as is my novel, and I'm reviewing this without any expectation of reciprocity.