I have the Medela PIS and it has been pretty reliable. I use it about 5x a day for the past 6 months and it is still going strong! And it just looks like a black shoulder bag, not obvious at all (all though I am proud of my pumping so I wouldn't care if it said "breastpump" in big bold letters!) Plus...great tip...my husband bought it for me BRAND NEW on ebay for $175!!!! Worth checking out. Good luck!