Well I have tried it & abused it right from the first preview build, there is nothing here in build 14393 to compel me to upgrade from Windows 7, whilst M$ engineers are to be mildly congratulated for managing to implement a start menu and floating App windows (although not as competently as the 3rd party developers have done in Windows 8) and for the addition of extra desktops (which were always possible in Windows 7 if you knew how ). I find it jarringly unsuitable for desktop work.
I should probably congratulate the M$ Marketing Department for creating a new way to extract more money from people by re-naming what is basically Windows 8.2 to Windows 10 - couldn't get the XP Users to buy Win 8 - Don't want Win 7 to become the new XP so lets give it away to a Win 7 Home and Premium users.
I see Shades of the old XP - Longhorn (circa 2004) debate where the following story ran :-
"Microsoft has slammed its XP operating system admitting to hardware developers in Seattle that the company has failed to deliver by not "thinking through end-to-end scenarios.""
"The software giant's apparent gaffe appears to be a reverse strategy to switch the spotlight onto new capabilities available only through its Longhorn OS, due for release late next year."
A microsoft spokesman said :-
"We put things together not really thinking through the end-to-end scenarios and this is why at times we have failed to deliver."
"The next decade will bring about a new wave of innovation in the technology industry through the increased security, greater reliability and faster performance enabled by 64-bit computing and continued advances in Windows," Gates said.
"'Longhorn' and the new x64-bit versions of Windows are the best foundation for a new generation of faster, more powerful hardware and software that expands the possibilities for computing and transforms the way we work and play."
M$ then unveiled it's next generation blueprint for the modern-day PC, saying it's goal was to get the ubiquitous device "much closer to the utility of a mobile phone." In light of this and ever mindful of gains made by Apple's compact PCs, M$ said it's hardware vision for the future was to develop the "ultraportable" PC that would end perceptions of computers as large, inert machines that need to sit on a desk.Instead the company said the smaller breed of computer will hit the mainstream in 2008, and concentrate on providing the consumer with an instantly usable, always connected, 7-inch wide screen PC.
I think if you substitute Windows 8 for XP and Windows 10 for Longhorn in the above - M$ might get away with using that speech again. Albeit 7 years past the target date of 2008.
Most normal consumers (not Techies), I talk to who have actually purchased a new PC (with Win10 installed) comment that "It's all right I suppose, but the Photo/Music/ Video/Mail/Browser Apps are terrible, I prefer my Android/iPad apps they are easier to use" - makes you wonder if they regret the purchase, they normally don't admit it, saying they needed it to run MSOffice or other obscure program and their Scanner / Printer. These are the normal consumers who wouldn't normally use shareware / programs downloaded off the Interwebs
What's trending in the Insider Feedback Hub - "Please make a Pokemon Go App" - Give me strength , no wonder M$ never listen to feedback