It works surprisingly well for me, Kat. I've been going for a few months now, and it really tightened me up. It's helped tremendously with inch loss vs. weight loss.
I started out wearing a 28W bottom, 26W top. I'm in a 14/16 top and an 18W bottom now, so it's gotta be working, lol.
I had to give it up for awhile when I received my sister's baby, but then the facility in my neighborhood started opening at 7AM, so I can go before work.
Give it a try!