Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not a "Killer back" workout

I purchased this DVD assuming there would be exercises for both the back and abs areas. The focus is on the abs, where the back comes into play. But there are no exercises designed just to targot the back. In fact, Michael barely mentions much about the back except when talking about good form. A good cardio workout, alot of jumping in the first segment- you will feel your calves burn. A good abs and waist workout as well. There are alot of twisting moves. The exercises are very similar to tae-bo, and I would recommend a tae-bo video over this one. Michael only performs half of the exercises himself. He also seems to favor one girl over the other through his attention. I wouldn't go through this workout though, and think that it was designed by somebody who had years of boxing experience.He also uses handweights, a jump-rope, and a body bar during the workout. But its easy to manage without them.