Downloading didn't take too much time (although I get 200-300Mbps) because I think (and perhaps some of the moderators or others who know can verify this) components of it were downloaded as part of prior updates but "turned off".Nice. Going to wait until I get home to check and see if the update is ready for my Surface Pro 6. Internet here at work is SSSLLLOOOWWWW compared to my Gigabit internet at home. Should be a much more pleasant experience to download at home.
This was the first upgrade that didn't re-write the registry. I have several custom items on my desktop right click menu (thanks to Sharpuser) and this is the first time I didn't have to re-do them.