I'm starting to come around to the Metro UI in Windows 8 because I'm better understanding what their plan with it is. Right now, there are no real Metro programs (I hate the word "app") so we can't really see what it will be like. Right now, the desktop is the "app".
As far as the OS itself, it's a remarkable accomplishment particularly at this stage in its development. It's pre-beta and it's incredibly stable and usable. I also like reading the Steven Sinofsky blog (Building Windows 8 ) because I like "seeing" the thinking behind the operating system...unlike what they give you in Cupertino.
