What is the author's style in Going Bovine by Libba Bray?

Going Bovine is told from the first-person point of view of Cameron Smith, a 16-year-old with a bad attitude. Cameron has a history of drug use and is not exactly Mr. Popular at school, but he seems to be liked well enough. Cameron's tone of voice is sarcastic, which can become grating after a while. However, his tone changes in the last third of the book as his character grows and is more tolerant and less bitter toward life.