Jillian Michaels Shred it with weights?

I purchased it when it first came out and did not like it as well as the other workouts by Jillian. I've read several reviews from kettlebell professionals stating that she does not teach the forms/position properly, though I can't say either way whether this is true since I did not know anything about kettlebells prior to purchasing this DVD. I will say, though that you should be very careful to hold your abs tight the entire time to avoid lower back injury, which I could see happening very easily with this workout if you forget to hold the core tight.

Best of luck!