I’ve avoided it on my 3-yr old i7 but just bought another similar machine and it came with 10 installed. So far I’m pleased, other than fighting my file associations until I told it who’s boss it’s been fast and stable. I always banish the horrid Metro UI in favor of Classic Shell so with a few downloads I’ve got what I really wanted - a faster and more capable machine that feels like Windows 7.
That's exactly what I do.
I ditch the BS metro UI and go to a nice clean desktop with Classic Shell start menu and a few desktop icons.
It boots up slower than Win7, but once it's up it runs great -- fast and stable.
The only problems I have with Win10 are the user interface elements -- ugly, stupid, crippled, and too many damn clicks to do anything.
But as an operating system platform for applications, it rocks at least as well as Win7 Pro (which remains my favorite Windows edition overall).