[zyberzero]

Timers works fine.

Music - yes, albeit a bit finicky to set up.

There's an addon called Music Assistant that controls the music, you can connect it to your provider of choice (local files, Spotify, etc), and you can let it connect to several types of sinks.

OOB the HA only knows a few commands (pause, next, etc) but there are some community driven effort to improve the support, such as "Play the album Dark side of the moon". [0].

[0] https://github.com/music-assistant/voice-support

[mixermachine]

Thanks, good info. I read nothing about the multi-room-music-feature. Do you by chance know if it can be done?

[zyberzero]

Yes, there is functionality to create groups in music assistant. You can even create groups between different types of sinks (so you can combine say Chromecasts together with home assistants media player together with airplay). However, I have not played around with that too much so I don’t know how well the players will sync with each other.

[benjaminoakes]

Given the lawsuits against Google from Sonos in the last 5 years, it doesn't seem to be low hanging fruit. Might not exist yet.