When I received these bottles at my baby shower my original intent was to take them back.  However, I ran out of clean Medela bottles and started pouring my pumped milk into these bottles rather than using the expensive storage bags.  Eventually I discovered, much to my surprise, that these bottles will actually screw into the Medala pump system!  So instead of getting the Medala 8 oz bottles for $4 ea, I can get the Parent's Choice bottles for less than $1 ea.  My son shows no preference for one bottle over the other.

It is very nice that these bottles are BPA-free (as most are nowadays). ...