Huge pain to use
I bought these bottles because I wanted the superiority of glass from a cleaning/safety standpoint. However, I was very disappointed in how complicated they are to put together and clean (this applies to all Dr Brown's bottles). The supposed anti-colic properties of the complicated valve system did not help my reflux baby, and even the slowest flow nipple was too fast for him.
ProsMade of glass
ConsComplicated, difficult to clean