I am using the Microsoft Insider version, build 10130 and I hate it. There are so many bugs in it that makes it a "Pain". The Orkin Man would run!! The bad part is it CAN NOT be uninstalled like Vista.. If you allowed the window to be placed on your task bar, uninstall it or when the release comes, you are stuck. Go to the control panel, uninstall program, windows updates and look for update with the # KB3035583 and uninstall it. That will prevent any automatic updates. I would wait until MS has more time and revisions before I downloaded 10.
Just my 2 pennies.
Art 73