When I was expecting my daughter we were looking for bottles that were BPA free, a good bottle for nursing moms to use and bottles that would be an easy transition for baby.  We decided to stick with a long time favorite and we were more than happy and extreemely satisfied with these bottles and liners!  The bottles and liners are reasonably priced and widely available which is a plus for a busy new mom.  We used breastmilk instead of formula and warning up the milk was easy and convienent in these bottles!  I would recommend these to any new mom!