Honestly, I don't understand the appeal.  The writing was juvenile.  The characters were flat and contradictory.  Likely the only reason I finished this one was because it was so short.  I realized about halfway through that this was written about as well as Rocky Flinstone's <u>Belinda Blinked</u>.
You just need to swap the "Pots and Pans Industry" for "getting a degree in psychology" with a flare of "girl with Southern Baptist purity culture trauma".  Making this correlation was probably the only reason I continued with the book.
I feel like I know more about her Aunt FannyJo, I mean TracyJo, than I do about either of her roommates.  
The characters felt like looking at marketing materials - forced diversity.  Adding a characters race or size for the sake of including it without actually honoring it.  I really could have appreciated less "I'm a fat, tall girl" body image issues too.

This is such a poor example of the BDSM community.  The idea that her two roommates are supporting themselves through college by only giving BJ's at a club is laughable.  The concept of her natural inclination as a Domme is just silly.  She gave no impression of that in their first tryst aside from just being a strong personality - and this was evidenced by her <i>trial</i> run as an interview.  No self respecting club owner would unleash an unknown on a client without vetting the candidate more.  

This is Intro to BDSM for those who found Fifty Shades too spicy.  That was a fairly meager attempt at intro to the culture and this is soooo many levels below that.