I'm so agree with you Mike !
We can tweak GI, Subsurface, transluancy and all other in and seeing what we do in a preview render in near real time ! It's the first time is tweak so precisely and fast my shaders . This renderer is so fast !
The modeler is really clever and the layer management for shader and render is really powerfull.
My 2 request are animations ( wich begin to come with scripts and export )
and a Matte shadow shader because sometimes i don't want to do compositing
Like for eovia Hexagon some month ago, i've buy this soft because i've seen a lot of good ideas inside and i would like to support software like this and the authors ( really professionnal and not expansive , Team really open to hear and help users )