Every baby is different and has their own preferences when it comes to bottles. The Breastmilk Bottle's familiar, breast-like shape helps many babies to instinctively know where to place their head, hands, and mouth.
Additionally, ours is one of the slowest flow rate nipples on the market, which most closely resembles actual breastfeeding. We have heard countless stories of babies and preemies who have been unable to transition from breast to bottle easily, but who have transitioned smoothly to ours.