I bought one of these torsettes on clearance at TJMaxx for $5.  I plan on returning it because I need at least one size larger plus it rides up and the style makes it likely that it will compress my bustline.  This is a very well-made slimmer with firm control and it may work for some depending upon your torso length, but if you buy it, you may seriously want to consider some type of "garter" system to keep it from riding up at the bottom.  I guess that it all comes down to how much uncomfortableness you want to endure for the sake of fashion and looking trimmer.  This slimmer covers your entire back so it wouldn't be well-suited for wearing in hot weather.