Already purchased it. Doesn't work on Mac yet, but that's not a problem.

As you know, it's much more difficult to create full on photoreal images using realtime PBR. Vray, Octane and even KeyShot still do a better job. That said, I have been experimenting in UE4 and PBR and Occulus to work out the best photoreal.

I do plan on playing around with the new beta of InstantLight as soon as possible. :-)