I have SONOS in 4 rooms (1 AMP and 3 SONOS1), and i play different music in all rooms from one acount.
But you can not play from SONOS and Spotify in the same time. Then one of them will stop.
I use both Spotify playlists and SONOS playlists. It works fine.
I am not an expert, but if you have any quiestions dont hesitate to ask. I til try to help.