Jasen,
all in all, the Vienna Suite is "just" a high-quality package of 64-bit capable plug-ins. All of the processors included in th package will give you perfect results in any kind of audio production - music of all styles, post-pro, sound design ... you name them. As a matter of fact, I know quite a few producers / engineers (including myself) using Vienna Suite highly successful in pop, electronics, rock, jazz and so on.
On of the notable differences to other packages is the vast amount of presets created specially for our Vienna Instruments. While other manufacturers hardly have more to offer than a generic "orchestra" setting for a Fairchild-clone, we have tried to go much deeper when it comes to orchestral instruments in modern music production. This doesn't mean that I _couldn't_ have done presets for other sources, too, but I have to admit that creating all the 500+ settings available today have been enough work for me to move on to other topics. ;-D
Another point worth mentioning is that Vienna Suite plug-ins don't follow the trend of recent years to desperately mimic "legendary" analogue hardware gear. Vienna Suite sports modern, highly efficient algorithms and code, without the intention to impose a "sound" of its own on your signals. - This may or may not be what you're aiming for.
HTH,
/Dietz - Vienna Symphonic Library