I'm a first-time poster so I hope I've got my P's and Q's right ...
I pump twice a day, 4 days/week - my DS is nearly 10 months and I plan to keep the pumping up through his first birthday, then see how it goes.
Up till now I've loved my Freestyle (it's allowing me to type right now), but (1) the battery has completely died and the pump only works when plugged in, and (2) lately it is SO tricky to get the breast shields on well, and the membrane sandwich perfectly aligned, etc. This is already my second set of accessories (breast shield + membranes + tube hook-up). Anybody else had issues? It seems like this sort of use (2x/day, 4x/week) is totally reasonable.