i myself, also dont consider myself a sissy...
Yes, I have used electric breast pumps in the past, when I was in my lactation stage. I use to pump twice a day. I actually enjoyed the feeling, when the pump would massage my nipple as it pumped. It was nice me time, while the pump did its thing. Yes, I did produce milk, not a whole lot, but there was always liquid in the bottles after I was done.
I had a double breast pump, so I felt like a cow being milked sometimes.