I find Zbrush models over-modeled and unusable. Having facial expressions and wrinkles permanently modeled into the figure severely limits their usability. In real life, the wrinkles in someone’s pants do not stay in exactly the same position no matter what position they are in. A shirt hanging out of pants does not stay frozen in place. Facial expressions are ever changing, having them frozen on the face of a figure is super-artificial.
DAZ and the other content distributors are selling Zbrush modeled content that has all these faults. They look great in the promo images, and they look great in one position, but when you change their position, for example in 100 frames of a comic book, it becomes instantly obvious that having unchanging details is a liability.
Morphs may be OK, I don’t know - but details - no.