So far, I like Win 10. It started out slow with a problem with my WiFi network card and BSOD, but I was able to work that issue out and it has run flawlessly for 2 months.
I have no interest in going back to Win8.1 or Win7.
Cool, glad you like it. It took me about a week of daily use to get used to the differences from Win7, but it's not all that difficult. It's quite usable and I use it now regularly with no trouble. Granted, I think the "flat and stupid" look of the Win10 GUI is ugly as sin by comparison to Win7 or OS X, but that's not a technical problem, it's just not to my taste.
> I have no interest in going back to Win8.1 or Win7.
Sounds like you made the right choice. Me, I like Win7, such is personal preference. But I can't tolerate the 8/8.1 Metro GUI for even 2 minutes -- I begin screaming at it and have to be restrained to avoid a scene or physical damage to the computer. Windows Server 2012 R2 is basically Windows 8 for servers, and it's a flaming disaster IMO. I've never worked with anything so stupid on a server. A Godforsaken nightmare.
Some people like it. They are more than welcome to my share of Win8 and Server 2012 R2.
But don't try to take away my Win7... and it sounds like you're that way about Win10. Happy for you!