But you do HAVE to use it! Start computer - Metro, Open app - Metro, Search for something - Metro, Shutdown/Restart - Metro, Windows Updates - Metro, Control Panel - Metro, switch apps - Metro, and more. It's a real PITA when you get the huge goddamn Start Menu when you want to do something simple...
And even if you do reduce that to a minimum (which is possible), it's still stupid - here you are working with 4 windows open on something, completely forgetting that you're on 8, you want to do some random simple operation and BAM - METRO IN YOUR FACE! :-)
Is it a problem that the start menu is huge? The traditional start menu has always felt like a huge usability nightmare to me and I'm nothing but glad that it's been replaced.
In my opinion, yes, it's pretty annoying. I never work in full screen, but even if I did the objects are too big and you have to move the mouse a lot more, which is a drawback on a desktop/laptop...
And even if you do reduce that to a minimum (which is possible), it's still stupid - here you are working with 4 windows open on something, completely forgetting that you're on 8, you want to do some random simple operation and BAM - METRO IN YOUR FACE! :-)