Shade has a very clunky UI that needs some getting used to, and the lack of decent tutorials in English doesn't help. Its physics engine is an outdated version of Newton physics engine that nobody uses anymore and its particle system is quite awkward to use. On the plus side though Shade has a terrific native renderer that outputs superb images on par with the likes of VRay.

At this stage my recommendation to Daz is to abandon the porting of Genesis to Carrara, because it is an impossible project, and go back instead to Carrara 8.1.1.12 (the last reasonably well-working version of Carrara with no Genesis code in it) and provide a robust FBX/Collada/Obj export/import mechanism from Studio to Carrara.

This solution will open the door for Carrara users to the latest Daz products that are not Poser compatible, and it is doable relatively quickly, even by a summer intern.