"Similar to how it was with Vista. That was a pretty dire system overall when considered as the direct upgrade from Windows XP and many people had problems with it but not everyone did."
Vista was not a direct upgrade from Windows XP. The installation engine, for a starter, was completely different from NT4/2000/XP. The audio system was new. Basic concepts -- standard limited users versus admins everywhere -- were challenged. Vista was the first truly new version (Jan 2007) for seven years.
I worked on a trial Vista deployment. We dropped it quickly -- not because Windows had changed (there were changes we sought) but it was too buggy for us. Windows 7 was less buggy, and usable enough. Having explored Windows Vista in a test environment, we had ideas how we would make Windows 7 work for us.