I had a difficult time with the writing style. Inner monologue is one thing; reading the entire book without dialogue or action is another. It wasn't so much showing versus telling, as a constant stream of consciousness that was way older than a 17 yo boy. 
 At the start of the book, it is page after page of monologue. No setting. No who/what/where/why/how. Then the boy meets his crush, whom he's never spoken to previously.(& it's off-the-wall, over-the-top) Where the new kid speaks to him, asks him a question, and the reader is subjected to several more pages of inner monologue before the simple question is answered. As this is exactly how the rest of the book plays out. What dialogue is used is very stilted, not realistic, and far and few between. 
 A three sentence conversation took 17% of the book. 
 There were parts I enjoyed in the writing. But those parts were not befitting thoughts of a 17 yo judging by his actions and speech. There were lot of moments in the monologue where I wanted to say, "Ah, I see what you did there." But it just didn't flow. Personally, I feel it was overwritten. 
 This is a very popular, highly rated series. I'm just going to say the writing style and author voice weren't to my tastes and move along.