I've had other waist trainers, however this seems the most sturdiest. Tried it on, sucked me in good and proper. I followed the sizing chart. Haven't worn it as yet though because I just had a tattoo done but I can see good things in my future. Will update as soon as I really put it to the test:......update 5 weeks of using and I must say that I'm impressed. I started at a size 35" waist and I'm now at 32". It locks on the last set of hooks now so I ordered a smaller size. My aim is to get my waist down to 30". I can surely see this happening with this waist trainer. Will up date six weeks after using the smaller size.