Pros: comfortable, easy to use
Cons: not good for everyday use
This is a great hand pump for occasional use. I got two of these in the hospital with tubing to connect to the Medela Harmony hospital grade pump. Mine came with the medium flanges (24 mm) but you can get other sizes for a more comfortable fit if needed. As with all manual pumps, if you're going to be using it daily, it's probably worth your money to invest in a cheap electric pump like the Medela swing. This was much more comfortable for me until I got used to the electric pump.