Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great Choice

I am very pleased with this book! My 7 yo son was saying his R sounds by lesson 7. We're continuing on through to the end of the book, but he is saying his R sounds perfectly now. We did this at home without the help of a speech therapist. He was very frustrated with practicing R sounds before using this book & hated practicing speech. I will be purchasing the book for S sounds next.