yeah undoubtedly. zbrush requires a firm knowledge of the basics at least.
the thing is as well, zbrush models tend to be very very very bad for animating in their raw form. so you need a good knowledge of topology for animation when you're doing retopo (after blocking + sculpting). there's a lot that goes into it, for sure. i was just stating my workflow.
but no, generally speaking, basic users wouldn't benefit from using zbrush.
i was just thinkin to try zbrush to make one humanoid character for JKA, but the things u all say here i think the best stuff for JKA still's the 3D's max or for little work - gmax, cause i can't do maps with radiant or to make models or sabers with milkshape :( so may be i'll keep to learn on 3D's max 10x a lot ppls xD:)