If my experience with an upgraded 8.1 to Win 10 and a native Win 10 machine are any guides, people should be avoiding Win 10 in droves.
Both machines are constantly getting busy with weird internal processes (what is System and Compressed Memory and why is it sucking the life out of my machines?) that shut down keyboard input for 5 seconds, 10 seconds at a time. When you are typing an email and everything shuts down for 5 seconds, that is annoying. In fact, when you are typing and they is a delay of any sort, that is annoying.
I am typing this on my Win 7 machine, which never seems to not display the character typed immediately. I have a old Win XP netbook with an atom processor that works just as well.
But my multicore machines running Win 10 suck. If I could move them back to Win 7 I would with no reservations.
Microsoft has some agenda they are pursuing, it improving the user experience is not a priority for them.