You can first rent it from hospital or some seller for the pump n see if that particular pump works for u before u invest in them. Previously I used a well known brand at a v expensive price but I feel suction isn't that great and I couldn't clear properly too. After which I switch to spectra m1 - for the size that's portable when I go back work. N so far it works great for me. Another reason I feel I'm not clearing is due to my bra that's pressing too hard on my breasts - as I'm using Freemie n I guess mayb it restricted the flow. Also when I'm pumping but multi tasking or stress my produce will not b as much as regular for same amount of time pumped (half hr for all my pump session) n would b full or blocked easily. Try massaging them before you pump n see if it's better.
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