Thanks Tim for the thoughts and images. At this resolution it's hard to see the distinctive quality, but having used an X1D for a few days, I can imagine the files are great.
I'm curious whether you see a significant difference in the files from the X1D vs uncompressed A7RII, if you happen to have taken the same shot with both. I wasn't able to compare the two outdoors much due to an untimely flu spell during my rental, so don't have tons of confidence in my own analysis.
One feverishly exciting afternoon indoors with a tripod and test charts, I saw how amazing the lenses can be. Really exceptional. However I found diffraction, and at close distances, focus shift, to sometimes be resolution equalizers. Looking at both indoor tripod and outdoor handheld shots, I could see a difference at 200% in some of my test photos, but not many. At 100%, probably my largest print size, I don't see enough of a difference. I can imagine many shots, however, where the large apertures, stabilization, light weight, and/or silent operation of the Sony would allow me to get a great shot/video.
With that said, I did like the camera, the intuitiveness, and many of the features a lot, and wish I had more time with it. If only it were half the price, or twice the game changer, or someone had two comparison RAW files that makes me see the light.