Back on topic:

#Subdivision is useful, but only if the mesh was designed for it. Not much sense in subdividing a 150.000 polygon mesh.

#It needs to be fully automated like in Studio. Otherwise most average users won't use it.

#It needs to be fully accessible for morphs. That's the one big weakness of Genesis: You can't morph the SubD 1 or SubD 2 meshes, just the cage, so joint fixes for example become guesswork. (Which is fine for animation, but not high resolution still renders)

The last point is why I still prefer hi-res meshes, although a subdivided lo-res mesh is more practical inmost other aspects.

That's all the feedback I can think of right now.