content: This tape was definitely more effective than I imagined it would be. I perspired (the heater was on, but that wasn't the only reason, I'm sure) and felt challenged but not tortured. The combination of pilates, yoga, dance, etc. really made the workout very fluid and non-work-out like...it went much faster because she moved on to one exercise after another...and I didn't feel any particular move was overdone.Overall...effective workout. Much better than I had anticipated.