I just read an article which reports Vista being used on just 1% of PCs.

I'm personally using Vista here, as the only operating system on my desktop PC. I upgraded quite happily, installing a clean version of Home Premium purchased from OCUK for a very reasonable price (it's an OEM copy). Touch wood, things are going very smoothly. The laptop is still waiting (along with many others) for the free upgrade from moduslink, and my other desktop is running XP as the main OS, mostly due to the fact that other users feel more comfortable with XP than Vista, though it does dual boot into Vista Ultimate.