Lon Moore:
I'll begin by stating that I am not a Microsoft fan at all. I don't like their products and I don't like them as a company. My preferred operating system - for home use - is iOS, followed by Linux.
Having said all that I have indeed used Windows 8 for quite some time.
In a nutshell? Windows 8 will give the vast majority of users a migraine, at a minimum. It is far, far from intuitive and should you make the mistake of moving away from all the pretty little tiles on the desktop and back to the more common Start menu, going back to the pretty little tiles desktop is an exercise in... thousands of mouse klicks.
It is also slow. Much slower than Windows 7 and XP.
If you're using Win7 I'd say stick with it until... whenever.