Well, I finally got around to trying out the Vienna Suite demo, but I've run into a major issue. In DP 5.13 with DAE 7.4 there is a GUI issue with Vienna Suite. When I instance a plug in RTAS, the plug window comes up, but it is completely blank. No controls, no nothing. This is the same for all of the Vienna Suite.
I was really looking forward to trying it, as I was thinking of buying it.