I think a big part of our discussion is going to center on judging a book by its cover, first impressions, and the like.
For me, the premise wasn't a deterrent. I love romance novels, and I've read romance novels with BDSM in it before. But I totally understand previous misconceptions about the subject, especially with the popularity of 50 Shades.
Sejic does a wonderful job mixing PSAs into his story, especially with the way he's structured the story and the deep relation that evolves between Lisa and Ally.
There are a lot of books out there that I think people are just embarrassed to admit buying. I like Sunstone and enjoyed the way it evolved on DA and I will get enough money together to actually buy the book when I can, but I could never mention it in the comic book store just as I could never really admit to buying and liking Bomb Queen, Tarot Witch of the Black Rose or Empowered. I always had to make it a point to put them on the bottom of my pile so only the cashier would spot them. Even now if I'm going to pick up one of those titles I make sure to go in on an off day when I know there won't be that many people in the store. I definitely don't talk about them.