This is the first shaper I have ever purchased.  When I put it on for the first time, I thought there was no way it was going to zip up.  But the material, hook and eye, and zipper are all made of very good quality, and so far it has held up very well.  I can tell you that it makes you look about 20 pounds slimmer, at least for me. It does a great job smoothing out the torso and the bust line has good support. I feel much more confident wearing fitted items when I wear the shaper.  It does have a "split crotch" if you will, for the necessary bathroom trips. The bottom/pelvic portion covers the front well, but can end up causing a visible panty line in the back when it rides up. This isn't a deal breaker, at least not for me. I highly recommend this shaper.  I am 5'5 and weigh 155 lbs. The one with the zipper down the front was the one I purchased.