I am a NEWB when it comes to GitHub. I had to wait till it was officially uploaded, which today, I see that is has been!
All KiCad does is draw lines. So, it would seem this would be a pretty simple program to use. Well, I manage to screw up lines on a regular basis.
After downloading this and updating my board, I could see that the pads on my board were not spaced properly. I actually do have 3 prototype boards, and while soldering, I noticed the pads seemed a bit to close inwards. I'm really unsure of how that happened, because I did check the number specifications on the pads several times.
Only slightly negative comment I have is that the DataSheet shows rounded rectangle pads, whereas the image above shows square pads.
I really need to have a time machine so I can have the time to learn how to do these myself.
But, really, I can't say, "THANKS!" enough times. The 3D viewer seemed like a bit of a gimmick to start with, but as this gets better and better I think it will be a good way to catch issues that the 2D just doesn't show.