Okay, this book was so much fun to read. It's interesting because it originated in "Fangirl," where the protagonist was obsessed with a Harry Potter-esque series and wrote fanfiction about it. "Carry On" is the result. 
 We are clearly living in a post-HP world, and Rowell takes advantage of that. It tidies up messes that exist in HP while still honoring the source material. It's predictable and pandering at moments but never overwhelmingly so. The characters are fresh, realistic, and fun. My favorite chapters were from Baz's point of view. 
 The one thing that drove me insane was that the punctuation is placed within the parenthesis. Why?! So irritating. I had to pretend that it was because the book was "written" by a college freshman to move past it. 
 I stayed up until 2am to finish this book.