If you are used to Sonos you’ll realize MusicCast shortcomings pretty quickly. Biggest thing is no in App control of Spotify or Apple Music. Only Spotify Connect and Airplay for those which means customer has to go back and forth between Music Cast app and Apple Music/Spotify app. It was a bit embarrassing when I showed the customer how to do it. Made that mistake once and never again. I just spec A Sonos Connect in media rooms then I have the problem with receiver audio being out of sync with Sonos. Just can’t win