I just moved all my machines over to the new Microsoft Update Beta. This includes my machine at work and both my home PC and laptop. A very painless experience, and so far a good experience all 'round. My first set of updates that got automatically downloaded and installed were the updates for the Outlook 2003 Junk Filter. It's a simple thing, but I think that's just so great, becuase I don't have to go visit Office Update everytime. And you know that we're always changing this Junk Mail filter to keep in line with the latest spam scams, so I'm really happy I have that super up-to-date now, and it's going to stay that way.
Any of you can sign up for the Microsoft Update Beta. If you want to try it out, just head over to http://update.microsoft.com/microsoftupdate. Also a good idea to check out the FAQ too.