I've heard great things on here about the Spectra. People have been saying that it is better than Medela. My insurance covers a medela pump, but the last time around, I really hated pumping because it was loud and uncomfortable. The reviews for spectra are great - comfort, quiet, and great output. Groupon is having a discount on the Spectra S1 and S2. Do you think its worth it to just pay out of pocket for the Spectra? Which one would you get (I can't tell what the difference is).?