I recently got my first set of Sonos speakers (Amp + Soance + Roam) for my patio. The idea was that I would team the Roam with the Amp to have hands-free control of the system. So far, that has worked brilliantly!
One of the few things I was annoyed with was that when I activate Alexa using the Roam, if music is playing on the grouped Amp, the volume does not lower for both members of the group. However, if I use the Sonos voice control, BOTH members of the group lower volume after activating the assistant. This greatly helps with voice commands.
It would be cool if Sonos could create the same behavior for Alexa that the Sonos assistant does.