I'd call this one more "Middle School" than YA. I really liked it. Pretty quick read, but lots of action, good worldbuilding, and likable characters. 
 Set in a dystopian future where settlers live and farm under the ocean, there are outlaws, conspiracies, and special powers (nothing paranormal, more of the genetic mutation variety). 
 Tiny bit of romance, mostly just flirting, and that is not the crux of the book. 
 I enjoyed it and will be looking for more from Kat Falls.