Avent is a great brand of bottles. When I had my first son eight years ago I struggled for a month trying to feed him with different types of bottles and he liked none.  All he would do was cry, I was frustrated.  Being a teen mom and inexperienced I was going crazy that first month was awful.  Instead of enjoying it with my new born son I was desperate looking for bottles everywhere.  When I took him for his shoots I told his pediatrician what was going on and he commended "AVENT".  That same day I ran to the store and bought him avent bottles.  He loved them from day one.  I was in heaven...