I already have a Spectra S1 from 3 years ago and it still works great, so I’m looking for a backup pump. These are both completely covered by my insurance, or I can upgrade to a Medela Sonata, Willow, or Elvie for $200. I also have the option to get a Lansinoh pump or another Spectra, covered by insurance, but I think I’m most interested in the Medela max flow or the Motif Luna. Has anyone tried any of these? Which one do you recommend?