Instruct: Classify the given Amazon review into its appropriate rating category
Query: Great product, great value!

This product is awesome! It arrived promptly and in great condition. The cushion comes with a pump so that you can inflate it to your desired firmness. It also comes with a booklet of some suggested exercises. I am using it primarily as a seat cushion to engage my core and improve my posture when I am sitting for long hours at work. So far, it has helped immensely!