I am a first time mum and within a couple days of bub learning to feed my nipple become cracked and made feeding him unbearable. Using the shield allowed me to continue breast feeding pain free while my nipple also had the chance to heal while using them. They would stay in place, not leak and not slide off. I still cringed when he would first latch but it was for no reason as there was zero pain anymore and within a week of using the shield I was able to breast feed again without them.
Painfree, stayed in place, inexpensive, able to continue breast feeding, allowed nipple to heal within days.
Need to be a little persistent getting bub to latch on as they r a different size and texture to the nipple.