You need a third party program just to get a normal start button back. The one that is default (I don't know if it came with 10, or that upgrade to 10 they released a while back that added the "Linux shell") is CLOSE and much better than the Windows 8 bullshit, but the search (Win+R and type program name, how I open most of my programs) is ridiculously slow. The third party option - Classic Shell - is way better, but it's still a third party app that I doubt most businesses are going to roll out for their employees.
That said, Windows 10 is pretty much "fine" for the average user who doesn't care about privacy. Facebook works. Youtube works. Office works.
That's the problem though, there is no discernable advantage *at all* to the average user. Shit, I'm a power user, and the nicest thing about it is the "Linux shell", but I'd rather just run VMs anyway. I'd go back to Windows 7 happily but I just don't care enough.
"I've seen it. It's rubbish." -- Marvin the Paranoid Android