I have done the GRABAAWR twice and thinking I will do it again this year. I agree with everything that has been said, including that it does tend to skew old (I am 59). Each day is a good long ride and the scenery is always good if not spectacular. I also agree its good to bring the tent air mattress and pillow. I went for the breakfast plan and then ate at their scheduled stops during the day. But there are many places to eat other foods. Wheel & Sprockett provided service the first year when I needed help, I was better prepared for the second and did not need anything besides the morning air check.
I hope my schedule lets me go.