Platex bottles with disposable liners are great bottles. I love the regular bag type liners. They are cheap and easy to use. The drop-in type liners are a little bit annoying. Because you squeeze the liner to get the air out of the bottle before feeding the baby, sometimes with the drop-in liners you can squeeze too hard and the liner slips off the rim and spills formula or breastmilk all over.

I never had that problem with the bag-style liners. These bottles are fantastic. My babies all loved them. They have a nice wide base on the nipple that mimics the breast. Also they have a nice wide mouth...