I didnt go too well with this one. Im better off expressing my milk with my hands. Maybe it was because I just didnt understand how to use it (and it doesnt take a genius to use one) but I gave up pretty much after 30 minutes of trying and realising I only expressed 15mls. Not good enough. The product itself looks decent and runs on both battery and electricity so take your pick. Its compact and I still use the bottle that came with it but other than that, there's nothing else I can say about it.