F.K.
I used them with my son and will be using them with my second son due in 3 weeks. I love them. Yes, there are more pieces to wash but it's worth it. My son had really bad gas which made him cranky until we switched to the Dr Brown's bottles. He never latched so I had to pump and bottle feed. My sister is a pediatrician and she also recommends them and uses them with her newborn. They come in both glass bottles and BPA free bottles.