Despite the odd choice of name, this is definitely what Windows 8 should have been (just like 7 was what Vista should have been). I hated Windows 8 so much. Not that I didn't understand how to use it, it was just stupid. With some free plugins I can make it tolerable though. But I am running Windows 10 right now on a spare SSD and so far I don't really have anything negative to say about it. I definitely like the new features. I'm very glad they finally fixed the command prompt too!
The only thing I'd change is All Programs should do an old school WinXP/98/95 style where it opens a huge several column list of all your apps. I don't like the Vista/7 single scroll list. But like with Win 7/8, there will eventually be a plugin for that.