note : now there be a recall on medelum power adaptor too I own both the medelum pump in style advance and ameda 's purely yours pump . Ameda 's pump be better than medelum . see below . I do not use my medelum pump at all despite have waste about $ 300 on pump and spare part . I be a work mom so I pump a lot with baby # 1 and be do same with baby # 2 - already have a freezer full of milk . why ameda be superior to medelum : 1 -rrb- no mold growth - milk can not get into tube . see below . after I find mold on my medelum pump I go out and buy a ameda pump right away . 2 -rrb- about half the price as medelum if you just buy the pump and not the bag etc. . 3 -rrb- the ameda pump be easily freestand , also have nice slot on the pump to hold you pump milk in bottle . if you remove the medelum pump from the backpack or bag you 'll see the pump casing - the medelum pump have hole in the case around the pump so you do not really want to take it out of the bag - and nowhere to put you pump bottle so they do not fall over . FYI Ameda pump have last since 2008 with pump daily 5 days\/week -lrb- I breastfeed baby # 1 for 18 month -rrb- and it be still go great - I be use it again now . Medela know about the milk in the tube problem - in fact there be instruction about this in the booklet that come with they pump . well , I get milk back up in the tube more than once despite follow the instruction in the manual . then I have to stop pump and dry the tube out . no more pump that day as I do not have spare tube . and , to my horror , despite run the medelum pump for a couple of minute after every pump as per instruction , and dry out the tube if they get milk in they , I open the faceplate of the medelum pump one day and find mold grow on my medelum pump . that be it , I buy a ameda pump and have never go back .