Win 10 works fine for me. I don't understand all the angst over the start menu, which I've always found a little clunky anyway. I have a desktop folder full of shortcuts to stuff I use a lot, and right clicking on the bottom left corner of the screen brings up a list of Windows features like command prompt, control panel, task manager, etc. And for some reason, the printer responds much more quickly to Win 10 than it ever did to Win 8. With 8 I was always looking at a minute or more delay between hitting "print" and getting action. Now, it's almost instant.
The only issue I have is the network icon always tells me I have no internet access, even though I do indeed have internet access. I suspect some sort of router weirdness. Extensive searching of teh Google have failed to reveal a solution, but if that's the worst problem I have, I'm happy.