Sonos is going to give you access to more music services, Play-fi is going to give you better sound quality. Play-fi supports up to 24/192 and sonos supports up to 16/48. Play-fi supports airplay, but not all manufacturers support it in their players. Sonos does not support airplay. I used to like the Sonos app for it's simplicity, but now the Play-fi app is easier to use. The Sonos is more mature. Apps are inter-changeable on Play-fi; ei you can use the Polk Play-fi app to control a Definitive Technology player. Play-Fi supports Spotify Connect, but not Tune-in radio. It does support internet radio. Both Sonos and Play-Fi promise Amazon Alexa control.
Anthem makes really nice equipment and it's hard to beat ARC.
Right now, Definitive Technology has the W-Adapt on sale for $199 on their website.
I have Sonos, Play-Fi (Def Tech and Anthem), Google Chromecast (audio and video) and Logitech squeezebox's (5) in my home. Hope this helps, but is probably going to confuse you.
Anthem makes really nice equipment and it's hard to beat ARC.
Right now, Definitive Technology has the W-Adapt on sale for $199 on their website.
I have Sonos, Play-Fi (Def Tech and Anthem), Google Chromecast (audio and video) and Logitech squeezebox's (5) in my home. Hope this helps, but is probably going to confuse you.