Before getting asked to leave at the instance of certain people here, I decided to step out a month ago. Looked up the site today and see that the firestorm continues to rage.
To hold out some hope as to the integrity of the hardware therefore:
My five zone Sonos system continues to be as rock steady and full featured as it has been since the time I ethernet wired all of it a couple of years ago. Prior to that, back to 2011 when I bought the units, it was just 99% reliable, not bad for a wireless system.
This, for both streaming and NAS play.
There is a precondition for this: Running S1 and SMB V 1 for the NAS link up. It was easy for me to accomplish this because I never left S1. And my SMB V 3 capable WD router can also do V 1. I do not believe I am unduly exposed to any risk via this link up.
I mostly do not use even the S1 app because all my streamed music is via album art displaying Echo units wired to line in jacks on my Sonos kit. If I could dispense with album art and voice control that Sonos still does not offer in India because it will not invest in the needed local server infra needed for latency free Alexa integration, I could just cast to the Sonos players, singly or grouped, directly from the Spotify app; then line in jacks on Sonos or the S1 app would not be needed.
I have made sure that I will not get upgraded from S1; easily done by not keeping any other Sonos app version on any control device.
I will be happy to drop in here occassionally and answer questions from all except from some I refuse to engage with here.
But this should let others know that dumping Sonos hardware may be premature, unless this mess continues for months on end. The S1 hardware itself is still excellent.