I'm a fan. How couldn't I be? O'Connor explains grammatical principles all kids need, in a way they can understand. I can't wait to use it; I just need to find my first victim, I mean, student. Don't be surprised if I work the book into lessons here, but until that happens, I wanted to be sure you know about it.
One bummer: Unfortunately, you'll have to tolerate occasional mentions of poop and vomit, belches and boogers. Otherwise, O'Connor does well with writing conversationally, using examples and jokes which keep the content from becoming dense and dry.