LollerAgent

Sounds like you don't quite understand how the Unifi system works.  You shouldn't install the controller on your computer.  Like others have said, you should have installed a local controller (like a Cloud key), or host a multi-tenant Unifi controller in AWS, etc that ALL of your customers can use.  The latter is what I prefer.  My co-located multi-tenant controller hosts ~50 Unifi sites for multiple customers without any issues.

I believe using a Vera negates the need for the C4 Z-Wave dongle.. could be wrong though?

I just set this up - one Spotify driver for each room, with "Auto Room Select" for the room.  It powers on the room and switches the input to Spotify as soon as you start streaming to the Spotify Connect "zone".
For the AMS matrix, there is a Parametric EQ available through Composer, including HE.  
Shoot me a PM if you need help setting up the Spotify stuff.

What is this supposed to mean?  UBNT Unifi WAP's (recent generations) are rock solid.  If they aren't, you are doing something wrong.

Just an update here.  According to Lutron [1], official RA2 Select drivers are now available for C4!
[1] https://forums.lutron.com/showthread.php/3739-Ra2-Select-Control4-drivers?p=19927&posted=1#post19927

It's probably best if you don't double post the same question in multiple threads.  It's confusing for people that are trying to respond to you.