All my friends have been talking about these suction pumps so I finally tried it. I was really surprised at how much breast milk I was able to pump just while my baby nursed on the other side. I didn't have to do anything except attach it, and feed! I got a whole oz from this pump to feed my baby on top of what she got while nursing. It's a win win in my opinion. I love that it comes with a stand and a lit as well so there's no spills and no dust it anything getting in.