I was, like most, apprehensive about buying a body shaper online.  In fact, I had purchased one that was a complete waste of money previous to this little gem.  I would like to start off with stating that if you follow the fitting chart, I found it fits as one would expect (I am 5'4' and 165 lbs).  First off, I was impressed at the quality of the material and machining.  This thing means business.  What I feared most is that the legs would roll up and the middle wouldn't fit leaving plumes of fat flowing out from the edges of the shaper, but that is NOT the case.  It was actually surprisingly comfortable for basically being a modern day corset.  There are three size choices for the corset hooks in the front which is great giving a choice of how tight you would like it to be that day.  It is a once piece but the way it is actually put on is almost like a two piece, however the design does not allow any muffin tops to appear due to the confinement of the corset.  Be prepared to feel a little tickle in the bum area as the material is very thin though there to allow a little curve through, it had me giggle once or twice when I could feel my skirt there and no where else (which was slightly inappropriate as the first time I wore it I was a pallbearer in a funeral) but it made for fun, light conversation with my fianc.  Personally, I am very very happy with this product and I have already recommended it to others.  It is quality in the making and it is accurate in the description.  I will most likely but it in the nude color as well.