AZ Controller is a replacement for (any) other plug-ins. But it is much more complex then "ACT MIDI".
Define several controls is "simple" at first look, but think of:
1) on AKAI side you can configure each of these controls different way. Each option has own advantages and disadvantages, these has to be explained to use effectively
2) on Sonar side you can configure each control to control different parameters, also several parameters depending on other controls and options. Also what you set in (1) should be defined correctly in Sonar. And so there is quite lengthy explanation required.
3) AZ Controller is even more complex, you can define complicated reaction on your controls (for example, you can define that "Play"+"Stop" insert marker, "Play"+"Record" toggle current track record arm and so on), that also depends from (1).
You was fast in "reading it all". Have you really tried to follow the text (I mean configure what is explained)?