Instruct: Classify the given review into positive or negative sentiment.
Query: Disappointing

I read this book for our book club. It was fascinating to find that half of the book club members absolutely loved it and half absolutely hated it. There was no in-between. While I found the writing style engaging, I found the author to be an obnoxious, self-centered, arrogant whiner (not to mention mean-spirited). I grew weary of the perfect "Marth" and her equally perfect husband. The puppeteers were "cute" at first, but after the 8000th mention, I was ready to scream. Don't get me wrong, when I started the book I was ready to love it for Adam's sake. But this wasn't a book about Adam; this was a book about the wonderful Martha Beck and her condescending greatness in dealing with an imperfect child.