Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Better Experience If I Had Kettlebells?

I really enjoyed Jillian Michaels 30 Day Shred and so I wanted to try some of her other workouts. If you're not already familiar with how to substitute dumbbells for kettlebells then you're definitely more prone to injury with this workout. My arms got a bit of a workout with this DVD but the backs of my knees got more of one. Perhaps if I actually had kettlebells maybe this workout would have been a better experience so keep that in mind. In addition to Shred It with Weights, I also tried 6 Week Six Pack. However, the only workout from Jillian Michaels that I will keep in my rotation isJillian Michaels - 30 Day Shred. It's the best one of the bunch for sure!