I just did the upgrade from 8.1 to 10, it was very easy, thank god for a start button, no more IE, its now called Windows Edge, everything seems to work K
Maybe in a few years . I have a start button in 8.1, and only use windows on a gaming machine, everything else is Linux.
If I was on 8 I would move to 10, but as I am on 7 I won't upgrade to 10 until the first service pack. There is bound to be driver related issues and incompatibilities.