Products that stand the test of time are tried and true - and the Evenflo glass bottles are no exception. I have used these with both my young children, and just love the fact that they are tough, easy to clean, and I don't worry about putting them in the dishwasher because they are glass and can handle the sterilizing temps of the hot water. They price is right too! So many "new" designs are basically the same as these classic bottles, but with a much higher price tag. I don't always agree with things that my mother says and does, but she used these with me, and I am definitely following in her footsteps on this one!