I ordered my size based on the sizing provided.  I am able to hook on the first set of hooks.  It does provide the curves I was looking for, but I NEVER forget that I have it on.  The area below the waist was flipping up the first week that I wore it as I do deskwork all day; lately it hasn't but i don't know if that is due to additional weight loss or the fact that I was wearing clothes that did not allow it to do so!  After wearing for several hours, I do experience a little soreness where the stays are pressing against my ribs. The lines of the squeem will show under a close fitting garment if your are near the upper limits of your size; and if someone is holding you, I believe they would be able to feel the support structure.