Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Heartbreaking

It sounds great and some people swear by it, but my kid was never a sleeper and I ended up finding that the practices that the book warns against were the only way to keep both the baby and ourselves happy. I think this book makes promises that it doesn't keep...it just won't work magically for everyone, even if you follow the instructions. In fact it is heartbreaking when a book promises a desperate parent a perfect sleeper. I wish I had never followed this book as it made me feel worse. Especially ineffective if you are nursing.