One month from release and it still has stability issues, games crash, it rebooted whilst watching a film (it was applying an update!!!!), and all this on a rock solid (five years plus), Win7 gaming machine.
Oh yea, everytime I shut down it throws up an error ms that I have to click to close - and, apart from the fast boot, I'm not sure what it offers, I still get more frames ps using DX9 and I prefer skeuomorphism to boring flat.
My opinion: Windows 7 is still the best. (Well - Ubuntu is No1, but work & gaming tie me to the MS ecosystem)