I was excited to see integration with Google assistant, however when I try to add sonos, the following happens:
1) I go to voice services and add Google Assistant
2) this takes me to the Google screen where it authenticates me using the same email address that's on my sonos account
3) this then redirects me to the sonos authentication
4) after authenticating on sonos, it says I need to register my speakers to my account, so I click Go to Sonos App, and the process starts all over again.