I just downloaded it this afternoon (after reading about it in this thread.)... it's really cool! I haven't tried the puzzles yet. The 3D overview video from Remington Graphics was a very useful introduction to the program. (Although it didn't play on your website for some reason, so I had to search for it on YouTube.)

I'm just not exactly sure what I would use it for right now though to justify the purchase. (I've only been modeling for about a year now... and my next priority is to get Substance Painter.) Perhaps an idea will come to mind in the future that would give me a practical return on my investment. I will definitely be following it as it evolves though, because I do find it incredibly interesting.