Playtex Ventaire Baby Bottles Review

My son has been using these bottles since he was a month old.  (We had Ventaire Natural Shape, because it supports easy transition between the breast and bottle).  There are only a couple of things that make these bottles undesirable...  The rubber piece that lays on the bottom of the bottle gets gunked up quickly, and it's difficult to clean under the rim.  Other than those minor details, I highly recommend them!!!