I have recently been experiencing problems with my Sonos One with GA. Everything was working fine until around a couple of weeks ago when Google does not always respond when saying "Hey Google" or "Okay Google", even when the chime sounds. The problem appears to have been getting worse. Also recently, when setting timers (say for cooking etc.) when the time is up and we tell Google to "stop the timer" or "cancel timer" etc., it stops for a bit but then starts beeping after a few seconds. As you can imagine this can be infuriating and the only way to stop it has been to switch off the Sonos from the mains.
All in all, i.e. general responsiveness of the Sonos to GA commands seems to be fairly laggy when compared to our Google Home minis which are a lot more snappy and responsive. I'm wondering whether these are just teething issues which Sonos is working through and whether anyone else has experienced patchy performance?