This made the difference between me dreading pumping and enjoying pumping.  Now I can have my hands free, pump both sides at once and read a book at the same time.  It has become my little break every three hours. :)  The sizing and fit are great.  I am a 44DDD and it fits great.  I was worried the adjustment strip wouldn't hold or be big enough, but it works fantastically and is very comfortable.  I don't have spillage from the flange either, something I wondered about if it didn't hold the flanges securely.  It does.  I would recommend this without a single reservation.