Aloha Starfish,
Having had the level I & II for almost 2 years now, taking the two classes will be a good refresher, support, and healing experience for you. He'll be teaching it in style similar to the way it's presented in the level II video.
No two classes are the same. The classes tend to be about 70% standard level specific information, and the other 30% depends on the needs of and where the group is at -and of course there's Chunyi's gentle humor throughout.
Normally you'll have Chuni's assistant Jim in theclass and my wife, Darcie. If Darcie is there, that could be interested as she's due at the end of September!
You'll have an option to purchase product there, as the people there will have to purchase the video et. al, that you got with the home study course.
I enjoyed Iam2's learning to bicycle metaphor.
Since you have the manuals for each of the courses and are fairly familiar with them, this will allow you to be with what he's teaching rather than become a newspaper reporter jotting down facts. Bring your two manuals with you and you can add insights and additional ideas when they show up for you or from him.
He'll be sending energy while he's teaching, so it will be the cheapest three days of healing you'll find (other than doing it yourself -which you'll also be doing.)
Enjoy yourself in the Twin Cities and stop by Learning Strategies to say hi if you have the time.
Much Love, Shawn