Windows Vista is the worst version of Windows I have ever used. I've had it for about a week now and that's about enough.
This is the most powerful computer I've ever owned, and it is crawling. Even after I cleared out the bloatware it came with, it stalls for seconds at a time. Video playback stutters whenever the mouse cursor goes over the video.
There have been some improvements, but most of those are basic things that should have been fixed years ago.
I tried it, I gave it a fair hearing. Now I'm shopping for a flavor of Linux to install.