I have DAZ Studio 3 extended 64 bits and upgrade to DS4 pro.The auto fit working good for me with many V4 cloths on genesis .With pro version i have also some plugins .3D bridge for Photoshop bring directly the render in Photoshop on layers and change it if i modify the pose (Unfornatly i don't have photshop extended for 3d) I also used Goz for zbrush for modifying mesh (i have tried head and one cloth) and bring back in DS4 easily

I didn't use Content creator

I regret for now the lack of documentation and tutorials for DS4 and relied stuff 

The version downloaded seems a released one not beta Just the Platinium members can buy it now before all people