Being one who is stoutly in the I want to disembowel the materials and see how and why they work the way they do camp, I would have to try it and see if it has the same level of flexibility as straight up coding them myself.  SSS is already available in Lux so that isn't a seller for me - I know how to add it to my materials, nor is it adapting the Poser shaders for me.  I always took Lux as a chance to break away from them entirely.  I have looked at the guides for earlier versions of Reality, but as they are for the DS version, and yes, may be similar, I am mostly curious as to what exactly it brings to the table for the Poser user that is not in those guides.  I do understand the launch day mania, with any luck, what I am interested in will not be too long in coming.

Also how accurate are the previews in relation to the final outcome of a material setup?  Do we need to bake and see regardless?   It is hard to see from the videos, some screen caps of the program itself would be nice to see.  If it could speed up my materials creation and adjustment it might be worth the investment.

Ah well need to get a newer version of Poser anyways first, it might nudge me to do so if I could see what I would like to know about. :)