I am pleased with these bottles! I learned about them just by reading other moms reviews and finding out that the maker of Tommee Tippee bottles patten the nipple of the bottle after a mother's nipple, and decided to give these bottles a try. I breast feed and supplement with formula, and the style of the nipple was very important to me because I did not want my baby to get nipple confusion. He uses these bottles with no issues after being breastfed. I would recommend these bottles specifically for moms who both breastfeed and give a bottle.