As a nursing mom, I hated the old playtex. Babies learn to bite down on them to control the flow.....
I like the old fashioned evenflow glass bottles.
I provide the bottles, so I get to use what I like.
I’ve had to compromise for picky nurslings that wanted a bottle shaped like a breast, but am usually able to get them on the evenflo. They fit better in my hand and are more comfortable for me to use. My hands are painful most days.