i have not bought cos i'm afraid i'm unable to breastfeed in the end. but i have been looking at the pumps and interested in getting a medela freestyle. cos its lightweight (2kg i believe, the avent one is 1kg more). 2 pumps - i hope can be more efficient? but some mummies told me in the end you only pump one at a time... so... not sure if this duo pumps is useful. though the avent one has got some cushy silicone pads on the pumps, i still think will go for medela. maybe bought over by the brand. hehe.