I'm really torn here. I used a Medela PISA with my daughter. I had two - one for home, one for work. I have all the parts, bottles for pumping, etc. I'm tempted to get another Medela PISA for this baby because I know what to expect, have everything, it worked for a year. But I've heard good things about Spectra? The "perks" I've heard of Spectra don't really apply... I don't need it to be quiet - I have a pumping room and rarely am on calls while pumping. I don't need to travel with it (at least I don't plan to?). So sell me one way or the other... Do I really NEED the Spectra this time? Should I just stick with what works?