It was a major event at a major venue. Organization was perfect: About 7500 attendees, most of whom were customers, enjoyed a total of ~300 hours of presentation material, over 40 hours of hands-on labs, were well fed and entertained (the 80s party night was a blast!).
To me SPC 2009 was a great learning and networking opportunity. It was great to meet new people and to see people I have worked with in the past, including instructors and folks from SharePoint MCM3 rotation. Out of what I managed to attend, my favorites were both keynote presentations, business continuity management presentation by Doron Bar-Caspi and Bill Baer, and hands-on labs.
Keynotes were done with superb quality, which definitely draws on art besides the knowledge.
I enjoyed listening to Bill during MCM course, and during SPC he and Doron have delivered the best technical presentation out of the ones I’ve attended.