I've been doing the Firm for about 2 months and am definitely seeing a difference! My backside looks "lifted" and my arms have a lot more definition.
The Firm website had a huge sale on all their "classic" vhs tapes, so I bought about 20 of them. I did an upperbody workout that kicked my newly lifted butt! At first I was laughing because it was so cheesy and 80's, but the workout...my goodness! My arms were sore for 2 days!
I need to go down and workout right now, but I'm a little scared!