I'm registering at Potterybarn Kids and they feature these bottles, so I'm assuming they are nice, but they are quite pricey compared to the other brands! I prefer glass bottles, and if these really are that nice I don't mind splurging, but I want to hear the opinions of any mommies who have real experience with these. I want a bottle that reduces gas, is easily accepted by breastfed babies, and easy to clean. I'm also registering for Dr. Browns wide neck glass bottles as a second option to try out on my son, but I'm really only curious about Lifefactory right now. Thanks!