Things I loved:
~ didn't drown my daughter - she can eat at her pace
~ even though there are 3 parts to the nipple, it's still very easy to take apart and clean
~ due to
vacuum pressure being needed, milk does not leak out
~ my daughter switches seamlessly between this bottle and my breast then back again
~ uses the same bottles that Medela
pumps use I was worried about trying this bottles at first due to the price being high and seeing reviews about other babies not taking the bottle.