It's not a dud, it is actually a nice system for some people. But it does not sell. And that does not make it a shining star.
Vista was also a very good system. I never had problems with it and I still run 2 Vista systems. But it did not sell either. They learned their lesson then, let's hope they'll learn their lesson now.
Other than the interface of Windows 8, and the difficulty of figuring out where things are, a few more things and a butt-ugly interface, after having used Windows 8 for about six months, I got used to it, can do what I need to do and figure out the rest. I recently updated to Windows 8.1 and don't see a whole lot of difference between it and Windows 8. Probably because I had time to adjust to 8 I guess.
I beta tested both Vista and Windows 7. We beta testers (in the wild) told Microsoft Vista wasn't ready for prime time, although I had no real problems with it. However, I didn't get to use it very long before we started testing Windows 7. Although I wasn't connected to a corporation or any other large group, I was in a group that got "dogfood" (alpha of an alpha version) on both betas, which meant that I didn't spend very long on Vista RTM before we started eating Windows 7 "dogfood." And all that to say I wasn't on Vista RTM long enough to have real problems.
Microsoft still doesn't understand that those of us "out in the wild" can put Windows, through quite rigorous testing that just doesn't have a chance of happening in a corporate environment. Instead, those beta testers out in the wild were "fired" by Sinofsky when he took over the Windows team, so a huge number of bugs and suggestions were never filed because they never came up in the corporate environment.
I guess if I had one real complaint about how Microsoft runs its OS betas, it would be that they ask us to test the product, but don't listen to what we have to say. When a product is rushed out the door before it's ready because some high-up muckety muck says it's going to be released on a certain date, well, what can we expect . . .
Cr-ea-eakkk! Stepping off soapbox now.