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

I had been working out with The Firm for a year and reached a boring plateau. I decided to try slim in 6. I did the first workout called start it up and it was too easy for me, so I went into ramp it up. It has been effective because Debbie works the abs a lot. I got through burn it up, it was tough because it is over an hour. I'm going to buy her other workouts. I love them! I've had better results than. The Firm.