Rick did a weekend seminar here in Denver. I drove the committeeboat/safetyboat/coach boat.
Rick can be a bit of a "Drill Sergeant" If you are put off by that, think twice about going, or put your ego on the back shelf.
Beyond that, it is the most intense week you will ever spend on your boat.
If at all possible, take someone you will be sailing with in the future.
Sailing is a TEAM Sport and if you do it with someone you never sail with again, a lot will be lost.
No matter what, you will learn more about handling your boat in a week than you will learn in 10 years of daysailing, and probably 2 years of racing.