Joy is a Hunter, someone tasked with keeping the world safe from Otherworlders, monsters and baddies from fairytales and mythology. 
 Things I really liked: 
 Joy is awesome, she kicks butt and takes names, but she never gets cocky. 
 Joy isn't super special just because, Joy trained since a small child in harsh conditions, taking her duty very seriously. She didn't just suddenly become a kung-fu master with magic powers because the author felt like it, dumping her in the middle of the story. Instead she gets a rich backstory that justifies her awesomeness. 
 I loved the monsters, really really loved them. (Though why the elf/faerie dude didn't get more page time, I'll never know.) 
 Things I really didn't like: 
 Why is there romance here? Why? Sure she's a teenager, and sure it's a YA novel, but COME ON. If there was ever someone too busy to be worrying about boys and clothes and makeup, it's Joy. It does her a disservice. 
 The shadowy conspiracies hinted from the very beginning to the very end never get any definition. I was annoyed. 
 I got bored with Joy's whiny homesickness about halfway through. You miss your home, we get it. 
 Speaking of getting bored, holy wordiness at times. Long paragraphs where Joy would work through her motivations and thoughts that I just wanted to skim or skip. 
 Overall, it was a good read. It kept me engaged, I liked the characters, and I definitively want to read the second. While it shared some of the same tropes we've seen a thousand times before, I felt that they were executed well and in an interesting way.