The author's writing style was good; her dialogue was excellent, and her characters were well drawn. I saw no spelling/grammar errors, etc. She was thorough in her research of zoo activity, as well. I did think there was a surfeit of characters, which detracted from my enjoyment of the book. Warning: there may be spoilers ahead.
I would not call this book a cozy, but that's just my subjective definition of one. I'd never thought about it before, but I guess I've decided that a bunch of little factors, added together, decrease a book's "coziness". For starters, there is more than one description of someone vomiting. I can only tolerate one per cozy, thank you very much! :) Also, in my definition of a cozy, there is less foul language than this book had, and there isn't as much emphasis on romance (past or present). As a matter of fact, I would call this book 1/3 documentary (info on the zoo animals, etc.), 1/3 romance novel, and 1/3 who-dunnit.
One thing I disliked was that the author has her protagonist whine about her "lost love" at age 15. She blames her parents for separating them, and spends way too much time wondering if she would've escaped years of emotional trauma if she'd been allowed to stay with her teen crush. As a parent, I wouldn't have been happy about my 15-year old sleeping with a 17-year old, not to mention when he turned 18 and she was still a minor. What the parents did was drastic, but we never get to hear what steps they may have taken first to dissuade her from the possible consequences of teen pregnancy, etc. It just bothers me that this 30-year old woman is still thinking like a lust-driven 15-year old, instead of realizing that her parents weren't so "evil" for doing this. The author gives Teddy some good character traits, but for me, they were overshadowed by this facet of the story.
I enjoyed the zoo information, and (if I were planning on reading another in this series) I would want more information about different animals. Before this book, I knew almost nothing about anteaters. I did enjoy the scenes with Lucy/Teddy interaction.