From the standpoint of somebody who has been using PCs for almost thirty years, I have to agree with most of the negativity. I can't imagine trying to get my wife to accept a Windows 8 laptop. Its a big challenge for MSFT to try to move their user base to this and at the same time provide a consistent experience across phone, Xbox and PC. Unfortunately, the younger generation does not see Microsoft as a force the way we did, they are just another company, with much less cachet than Apple or Google. So Metro will be lost on them, Android has a head start and Win 8 phone is getting almost zero traction. So the bottom line is that this may very well take MSFT down.
More information about formatting options