This is a very quick comment after only two flights. I'm using RWC with default X-Plane 10.45r2 weather and of course SkyMaxx Pro v3.1.1. Initial impression is excellent. Cloud volume is greater in the vertical axis which adds to the realism. I've flown two flights at about FL120, both times encountering clouds visible ahead long before I reached them.
I have a very high end system, and it was necessary to pull back on some settings with my 4GB GPU card. Even so, framerates are good and the product looks to be outstanding if you have the hardware to push it.
I'm eager to experiment with settings and different weather. Very pleased.