A friend has Win 10, and, in my opinion, if I was a Windows-only user, I would rate it 8/10. But of course, I'm a Linux user now, and would scarce think to use Win 10 as my OS of choice.

In short, I think MS has done a relatively good job for their ecosystem.

Virtual desktops comes too late, but again, at least it's finally there for Windows users

That said, I will not be using it anywhere on my own computers, but if my company uses it in future...