The current issue of Windows Secrets, from Brian Livingston has a report on some reports about the rollout of SP2. In the article it's interesting to note that he mentions Fred Langa's compilations of user stories. Fred is still recommending that people wait to install. At the end of Brian's newsletter is this quote:
<hr>For individuals, the security improvements in SP2 outweigh the small probability of problems. That's still true now, several weeks after SP2 started shipping. Companies running proprietary code should definitely test SP2 to make sure it will work properly on your systems. The bottom line is that we believe SP2 should be added to your systems as soon as possible, rather than waiting as long as possible. <hr>
(The highlight is mine, not Brian's)