I don't know if its just because this is the third John Green book I've read now, or if I'm getting better at literary analysis, or what...but the John Green Formula was painfully obvious in this book. Nerdy, awkward protagonist (usually male) plus manic pixie dream girl plus road trip. I've heard that the key to cranking out novels is to find a formula that works and stick with it. This book proves exactly that, and not just because of all the math. John Green has a formula, and it seems to work pretty damn well since he keeps getting rave reviews and awards for his novels. 
 Most of my criticism in this book comes from the formulaic structure that aligns so perfectly with his other works, the predictability of it, and the fact that I never again in my life ever want to hear the following terms: fug, fugger, any iteration of fug, jew-fro, and kafir. 
 Positives: a happy ending (hooray! see, not all of his books are horrifically depressing), the fact that Lindsay kicks so much more ass than either of the two main male characters. 
 Despite parts of this book being obnoxious in the extreme, I did like it enough to finish it at least, and was satisfied enough with the ending.