I must be in the huge minority. I haven't had a single issue with Windows 10 (if we disregard privacy). Literally everything has just worked. I will say thinking about it that my computer used for 99.99% gaming/internet/text documents. I keep anticipating that something is going to go horribly wrong but so far it's been great. I hate the menu and store that it shows so almost everything I tend to open has a shortcut…
But, honestly, comparing to something like Windows NT 4.0, I can't really say, why Windows 10 is better. There might be tiny things here and there, but overall experience is similar. The only Windows releases I remember were those particularly bad (Vista, 8) and those, which accumulated large userbase (XP, 7). Other than that, I don't see much progress. If Windows NT 4.0 would be supported today on current hardware and software, I'm not sure if I would use anything else. It was good enough.
May be those only my memories, I don't know.