I wish I had 500 PowerBucks to spare ... as I am relatively new to this forum.
Anyway, I have the UE Boom 2, JBL Flip, as well as the NudeAudio M speakers in my possession. I use all of them on a regular basis, each for a different purpose. Granted, the Mini 2 is much smaller than the Boom or Flip, it would be a good comparison for the NudeAudio M (similar size, feature, price point).