Earlier quoted context omitted.
Windows 7 had the perfect balance. It made significant improvements in many areas that XP was insufficient at and Vista sucked at, while keeping the fundamentals the same. Windows 8 though... I haven't used it myself, but from what I'm hearing, it sounds like it's slated to be a bigger disaster than Vista.
I think the jury's out on that. Vista was a disaster because of MS' focus on security. UAC is a usability disaster, both because it's not clear exactly when it is triggered, and the behavior of the system when it is triggered(blanking out the screen then the dialog, etc.). Also, the driver signing meant that a lot of suppliers weren't able to get drivers out quickly enough. Plus, Vista was a pretty huge system hog, a…
That was a much bigger issue than people give it credit for, especially since Vista shipped on a number of underpowered systems. My first encounter with UAC scared the living daylights out of me: I had just bought a new laptop. A few minutes in to setting things up, my screen turned off. For about a minute. Maybe two minutes. I was freaking out. Eventually it came back with a dialog asking if I would give permission to move a file.
Disaster.