My personal opinion only: I regret to say that I was disappointed with this book. It had a great premise; unfortunately, in my opinion, the main concept was not fully explored: Instead, the book was focused on a romance that has not enough depth or reason for happening. 
 Other notes: 
 - The way Kaitlyn's past is unveiled had an interesting potential which, unfortunately, was not explored. 
 - There were a few errors and contradictions (Kindle Version). Proofread seemed to fail in this case. 
 - The narrator seems to be always 'partially' omniscient (never fully) because he constantly switches between Kaitlyn and Lucas' perspective with no prior warning or valid reason. I was not a fan of this style. 
 - I think Kaitlyn's character is very unrealistic and contradictory. 
 - In general, characters do not have enough depth and/or motivations. 
 No doubt that the author is very creative and has a great imagination. The premise is great. Unfortunately, "Freak of Nature" did not meet my expectations. Nevertheless, I am sure it has enough elements for other fans of the genre to enjoy and I wish all the best to the author.