I purchased these because of the "no roll" promise.  The fit was good and they definitely slimmed me.  I followed the instructions for putting them on and didn't have any trouble.  Although the waist band didn't roll, it immediately flipped over - and there was no making it stay up.  By the end of the work day both leg openings were rolling up my thighs.  I can have the same thing with a product costing half of what I paid for these.  I wanted something comfortable "holding me together" under my dress at my son's wedding but I guess I'm going to have to keep searching.