I plan to upgrade.
I hated 8, and 8.1 was a copout to fixing that OS's issues.
But 10 is pretty good. Not as enjoyable as say the bump from 98 to 2K, or XP to 7, but it's a decent evolution of the OS.
While I do have a few niggling complaints* (the built-in photo browser SUCKS, and Edge is a crapladen shitfest of assitude) it does what I need it to do and, on an SSD, does them quite quickly.
*Release 10074 has this bizarre issue where clicking Taskbar buttons on an open app doesn't actually bring that app to front. Have to click 4-5 times.