What is the best pump to use in the early stages of breastfeeding?

Teresa asks:I attended the breastfeeding class at Pennsylvania Hospital last night. The instructor recommended not pumping for three to six weeks after delivery. I would like to pump sooner so my partner is able to feed the baby, too.Would the Symphony® pump work more efficiently than the Pump In Style®? What is the best pump to use if I want to start pumping as soon as my milk supply comes in?