This was very disappointing. I love the premise and the world building, but the plot, main character, and the dynamics between the characters were very lacking. 

The novel starts with the main character being taken by The Empire TM (very generic sci-fi overlords) while the fate of her family and community were left unknown and the main character doesn't spend much time caring. She's then forced to act as a stand-in for the imperial princess, whom she looks identical to. She is immediately approached to act as a spy for The Rebellion TM (again, very generic), who have no reason to trust her. While this is happening, a "romance" (incredibly generic) is forced in. All this happens without ever getting to know the main character, let alone care about her or what's happening. None of the plot nor dynamics that were supposedly forming felt organic or natural.

I really did like the world building with the clashing cultures. The history with the previous royals being forced to join with the conquerors of their planet in marriage was very interesting as well. There were moments when the story felt very promising, but they happened in the last fourth of the novel when I had already checked out for the most part.

I might give the sequel a try since it's already released. I hope the story gets better from here.