Unteachable is one of those books which falls into the new age category New Adult. The genre can generally be described as YA with sex or contemporary romance with a younger protagonist (high school or college).
As with any type of genre/category, there's good and bad. I have books that I like, but have trouble staying engaged with them, and then I have books that grab me.This is one of those good books which totally grabbed me.
I loved Maise. She was a fun and real character. I think she'd intimidate me too much for the high school me to be friends with her, but I loved her personality and voice. She reminds me of the scene from the end of the Firefly episode "Shindig":
Mal: Sure. It would be humiliating. Having to lie there while the better man refuses to spill your blood. Mercy is the mark of a great man.
[lightly stabs person with his sword]
Mal: Guess I'm just a good man.
[stabs him again]
Mal: Well, I'm all right.
Is she a good moral character, no. But she's real and engaging.
The ending of this book was also perfect. The last third of the book has a fair amount of twists, but I don't know if I could've predicted that last page.