My brother asked me for a audio solution for a project of his and proposed Sonos. His use case was basically connecting a phone to the speaker system.

I explained why I wouldn’t take it and my main argument is that any “smart” device isn’t exactly reliable in the long term, be it missing updates for old hardware, cutting out features, servers that stop working etc.

He got a simple Amp with a single volume knob now and some decent passives. Phone connects via line cable.