I've been using my wren pumps for about 4 months now, and I love them. They are easy to use after some practice, positioning them on your nipple and finding the right setting for you. They are a bit bulky but I've worn them shopping under my jacket or in the car as a passenger and they are fine. They can over flow if you have a big milk supply (mines over flow in the morning after not pumping at night anymore) they are great for being able to pump free hand if you need to get things done or if you are breastfeeding on one boob I pump the other at the same time and it's good. Just be aware that if you want to do anything while you have them on you need to be upright and can't bend over (to hang washing or clean things) with them on as they spil out but upright activities are fine. Would definitely recommend! Also would recommend buying replacement parts so you don't have to worry about washing them at 3 in the morning when your pumping at night! Just wash it in the morning when you are awake and have them on! Milk storage bags also good!