"I had my doubts about it too but the body builder morph that is included the free base package show that it can and does work."

Unless DAZ uses HD morphs to enhance the body detail of G3, I doubt a body builder G3 can be as detailed as a body builder SP3.

Thats the one big reservation I still have about Genesis in Poser in general:

Poser has still no edge creasing capability, so: Not enough polygons inevitably result into puffy morphs without detail.

But as the average user doesn't care that much about body detail anyway, I still welcome every way of making Genesis useable in Poser.