I don't know. I know only the most basic facts about Huntress' backstory (mafia family, parents killed before her eyes, swore to avenge them and started out fighting the mafia), and I still enjoy her character as part of the Batfamily. She brings something special there; like the OP said, in some ways she's Batman's Batman. She's less of a team player than he is and she goes against Batman, and at the same time she wants his approval. Her interactions with Gotham and the rest of the Batfamily have their own angle. She's interesting.