I think Paul Thurrott said it best (for those that did not read the actual article linked in the OP's post)...

It's a floor wax. No, it's a dessert topping. Microsoft's new whatever-the-F-it-is operating system is a confusing, Frankenstein's monster mix of old and new that hides a great desktop upgrade under a crazy Metro front-end. It's touch-first, as Microsoft says, but really it's touch whether you want it or not (or have it or not), and the firm's inability to give its own customers the choice to pick which UI they want is what really makes Windows 8 confounding to users.

It's the "you get a touch-first UI whether you have a touch-screen or not" part that annoys me. This is a desktop - I don't have a touch screen and I don't want to deal with a touch-first UI and all the inefficiencies it brings for me.