My niece loves this book and has read it several times, but this was the first time my nephew and I have read this story. All three of us had a great time with it! It's pretty fun to read out loud; it might seem kind of annoyingly repetitive at first, but the principal is just so giddy about his school and about learning, he just can't overcome his enthusiastic (if repetitive) gushing.
My nephew was very emotionally engaged with the story, groaning with misery and frustration in all the intended places, and gleefully cheering right on cue. It was an entertaining book with a fine, fine lesson, and one I'd not be opposed to reading again.