I posted this elsewhere but didn't get any good feedback. Women with small, flat, inverted nipples that have used a device similar to this to either correct their nipple or to prepare for breast feeding, what was your experience with thus product? Did it permanently correct your nipples? How long did it take for them to "correct" and you could stop using the product? I've seen the name brand ones that can be as much as $50 and I've seen cheap ones that look absolutely no different for as little as $6. Do you think the quality is all the same since it's just a simple plastic design? Any feedback on this product is appreciated.