Does anyone know if the Flex Belt works?

I saw an infomercial for it and I am intrigued. I googled it and saw a lot of positive things and some from "real customers" but I thought I would ask real people before I pay 200.00 for it. I know I know excersize is cheaper but I work and have 4 kids and don't have the time, and with the flex belt I can wear it to work. Help.