I love Squeezebox and my wife == Need for LMS + Airplay functioning

Dear Squeeze-lovers,

This is my first post!

I have a LMS/pCP(x3) multiroom setup that I find absolutely perfect. I love it! It has

• Large music database
• High resolution lossless
• Song ratings (thanks to Erland TrackStat)
• Interface for your own plugins (I have written a plugin that generates new playlists from a set of rules every night)
• Perfect merge of own playlists and other Spotty or Tidal playlists

Now to the problem part: My wife hates it! So, I'm closing in on having parallel systems at home. Her requirements are:

• Multiroom
• Her normal interface, i.e. Spotify, direct or saved radio streams, podcasts etcetera. Note specifically that Spotty is out of the question as it does not look exactly as Spotify
• 100 % functioning
• Restart possible with one button like a "normal" stereo

The system is:

• MacMini running LMS 7.9
• OSX, but have also tested Ubuntu
• Several piCorePlayers
• ShairTunes

The problem with my setup is (that on the paper should have everything):

• Multiroom suddenly looses one or several players. Not recovering until re-synchronized.
• Airplay instability, where the sound stops for a while several times a day.

Help needed bad!
Am I looking at the correct setup for my and my wife's requirements?
Should I look at something else than squeeze for me and Airplay for my wife?
Is it possible to have Airplay working 100 % (no lost players or glitches)?

Thanks!
/Johan