To be fair to Sonos if I want to use their app (that has terrible user experience) I think it would work 99% of the time. I didn't buy Sonos for their music software - I bought it to use Spotify over my speaker system. I don't use Sonos for music (and never will) I use Spotify (Not Spotify embedded in Sonos app) and its a constant cluster of a time to get it working on more than one speaker. Core functionality to their arguably largest user base.