No grudges with the interface here, using a Sonos bridge with a play5 and play3, or was that s5 and s3?
When i decided for the Sonos over Airplay or and iPod dock like the zeppelin, it was mainly because I wanted to
a) not rely on a 64GB+ ipod/ipad/iphone to hold all my music to stream from,
b) not rely on my mac to be on all the time to stream music via Airplay, and
c) being able to extend the current system by just adding another play3/5 or adding a Connect and some larger speakers for your living room.
Now all music is stored on a time capsule hooked up to my dsl, creating the wifi and connecting to the sonos bridge. You can use the ipod/iphone/ipad to control it, or the mac when you are working.
But using Airplay speakers and say an iPhone or iPad doesn't seem like a necessarily worse solution tbh.