I am sensing a pattern here. Everyone that claims that Windows 8 is a "nightmare" eventually admits that it's a nightmare because they're trying to turn it into Windows 7. It's not Windows 7. Yes, it will be a nightmare if you refuse to accept Windows 8 for what it is and are constantly trying to make it Windows 7.
So if you want Windows 7, use Windows 7. If you want Windows 8, use Windows 8. Don't try to make Windows 8 into Windows 7 or you will just give yourself headaches.