I love this series! It's just so fun. 
 It reminds me of things like "Scooby Doo" and "Buffy the Vampire Slayer", where you know they're going to win in the end but it's just such a fun journey to see them getting there. Also, the humor reminds me a bit of BtVS, which is a huge bonus considering that's my all time favorite show. 
 After reading a string of just okay books, this was a breath of fresh air. I love all of the characters, and the love interest is fantastic. I love the pacing of their romance, it's not anything close to being the main focus of the book but it's still so cute. I love that at the end of the second book they're still not officially together, Ally Carter does romance right. Even if this isn't the most realistic series, it still feels more realistic than most New Adult books I've read, especially when it comes to Kat and Hale's relationship. 
 (Note: that that comment was completely aimed at "Ten Tiny Breathes") 
 Such a great series. It's just a nice light and happy read. 5 out of 5 stars all the way.