I got a copy of Dairy Queen because of the good reviews... and I'm happy to say they are very much right. 
 D.J. deserves all the praise. She's cute, self-aware, knowing her limits, funny. I liked the way the author achieved to make it believable, to make you believe that it's D.J. herself the one writing about what happened that summer. It was very interesting to see her growing up and learning how important is to talk about the things that bother or hurt you. Oh, and I like Brian. I would love to read how these two get along in the next books. At least, books 2 and 3 are ordered and, as far as I know, on their way to me :) 
 What I cannot comment is the part of the book about sports. I liked the idea of a healthy and sporty heroine (this kind of heroines will be always my idols, one day I will love sports so much like they do and practice it without mourning), but unfortunately I don't understand a word about American football, and the book didn't help me get it better... Anyway, I like movies about sports, that's one of my first books centered in this theme and it was interesting...