I am getting on well with it.
The way I use it, it works just like Windows 8.1, which was tricky to get used to coming from Windows 7.
I like the fact that the Metro Page is now gone and is miniaturised into the Menu Button on the Task Bar.
Although that in turn now seems like it's just a little bit more awkward to reach all of your programs, since on the Metro Page you could get a long list of items. But that had it's own downside in being a nuisance to navigate.