Should I use c-bus multi-room audio system?

From the few threads for the multi-room audio system, I understand that few of you guys use it.
Talking with someone who promotes a multi-room audio system, he told me that c-bus multi-room audio system has small capabilities and that most installers are using touch screens to communicate c-bus with specialized systems like ?bose? or ?speakercraft? or ?B&O?. Is this true?
Should I use the c-bus colour touch screen or should I use something else?
Is there a schematic diagram to help me understand the system?

 

Here is a link to fairl amount of documentation:
http://training.clipsal.com/downloads/Marpa/MRA_Documentation_1_0.zip (5.5MB)

The Marpa software is used to configure the matrix switcher so you can download and look at that.
http://www2.clipsal.com/cis/technical/downloads/marpa

Also check out the amplifier configuration by adding a couple to your project in Toolkit. You can look at the configuration from the Database without having to have the real units.