Johns been running Win 7 since its first beta release and having worked with it, vista and xp side by side I have to say Win 7 is the superior of the three, at least in the 64 bit world. XP 64 gave me nothing but problems on my current set up but Win 7 is performing a lot better.

I really like 7 overall. Some of the visual properties are annoying but those can be disabled.