I've got access to the beta and I'm loving it! Very easy to use interface as with all the Substance products and the results are great. I've been able to create materials with scans made on just a regular printer scanner with really good results! I'm so impressed:)
There are a couple of minor things I would like to know though:
• Is there a way to save work in progress so I can come back to it later to finish it, just like you can in most programs. I can't see any Save As option anywhere? It's a pain to have to always try finish work in one sitting as it's not always possible to do that.
• Could we have some kind of numerical reference or input for the rotations on things like the tiling bounding box, so that you can see/choose the precise angle?