According to the young mother who tested with her baby two months, the bottle is very well thought out on a practical level: ergonomic, comfortable grip, easy washing, easy assembly, resistant pacifier, and it obviously meets the standards today - no bisphenol A. Only problem: the baby has struggled to adapt to the nipple or because it is a bit hard or because it is too broad. This will depend babies get used to -or by using it early and alternately.