Have the controls changed? I've only noticed changes in how it gets displayed -- what is harder to see and use? I mostly use the switch and the volume buttons.

The only thing that I've noticed is that when I use Sonos, it hijacks the volume button (so that the volume on my phone controls the volume of the Sonos speaker), but when I stop using Sonos (like leaving the network or doing something else that uses sound), the Sonos setting is sticky. I usually have my volume muted, but after selecting a song on Sonos my local device volume is adjusted to match whatever the Sonos volume was.