I purchased the Medela Pump in Style breastpump when I was pregnant with my 4th child. I had breastfed all my other children but this child was the only one that I was going to be going back to work full time and would need to pump. This was the best purchase that I ever made.
This pump is a double pump so you can pump both sides at the same time and it won't take you so long. It comes in a wonderful bag that no one can even tell it's a pump. It just looks like a satchel that everyone carries.
It comes with great instructions on how to set it up and use it. I had no trouble working it. It comes with a plug in for the wall and a battery pack in case you are somewhere that you don't have access to electricity.
I would definitely recommend this pump to any mother that needs to be away from their baby for a number of hours while they are breastfeeding. It really was a saver for us.