Experimenting and comparing hard surface pipelines right now. So I created the same thing
all in Z. This took me about 35 minutes; about half the time it took to do the same thing in
all Maya. I think with some more practice I could have done this in Z in about 15 minutes.
Work flow in Z: Shadow box for basic shape. Clipping brushes to add large scale height variation. DynaMesh for boolean operations. Deformation/ polish. Make poly 3D mesh. Add one sub level. Used alpha drag dot for slight bevels on holes.