Instruct: Classify Amazon reviews into positive or negative sentiment
Query: really does work!

This is a great product! And it really does work if you stick to it. I definitely noticed a difference in my butt and shape as a used this product. The more often you use it, the better results you will have. I feel better about myself and my health. It's a fun workout too and the music is upbeat! I would suggest anyone interested in buying this to just go for it!