I dont mind vista for some basic reasons:
1 I have the computer to run the darned thing
2 I know how to turn it off and
3 I have knowledge enough to figure out how to use the operating system
I dont think their is much a problem with the operating system itself its just the way things are layed out. You can turn off the UAC but who would look in User Accounts, I would look in a specific folder.
Also with the layout, my father bought a Vista machine and when he tried to access programs it took him forever to find the "start" menu, thats not good considering its in the same spot.
My point is it is fine to use when you get used to it and know how to use it but for the people who dont know how to use it, well good luck, i feel for you