has anybody managed to get the DSON/Genesis in Poser Pro 2014 to behave itself and use it as effectively as you would expect a poser native or older Daz figure to work?

As effectively as a native Poser figure or older DAZ figure?  No.  Absolutely not.

If you keep your scenes light, I think the figure is manageable to some degree.

You could probably make it "closer to effective" if you export it from DAZ Studio as a cr2 by baking it into a native file.  There are multiple things missing from the export and code blocks that need to be removed or DSON for Poser wants to "pick it up" when you load it.  You also loose some of it's native "features" going this route.

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