I have for the past year and I love the Medela pump in Style Advanced . since my son be 3 week old I have be pump exculsively and I highly recommend this pump . I have the model previous to this one , the only difference be the bag . I have travel serveral time in both airplane and car and this pump be great . the car adapter do not work the strongest in all car , however I can always get enough suction with the battery adapter . as with all pump I have have to replace membrane , but I find I could buy they online or locally . the ice pack for the bottle holder do not stay cold enough long enough for I , so I replace it with another longer last ice pack .