I don't remember any trouble. It took maybe an hour total, with perhaps five minutes of attention necessary.
There may be some benefit to 7 but what do we really do with these things besides FR, email, FR, graphics, FR, memos, FR, and a late night game of solitare between posts on FR?
Why would anyone upgrade from Windows Xp to Window 7?
When I upgrade an operating system it is usually when I buy a new box and even on the last purchase I made sure XP was installed, not 7.