I completed the hop in two days, Friday I managed to got to two stores afterworl and then hit the other 9 on Saturday (the last day of the hop).
At each store you show them your passport and watch a product demonstration. The demo item is then available at a discounted rate. You also get a piece of a printed pattern and the opportunity to see that's shops take on the pattern. The quilts made from it ranges in size and colors and it was so cool to see the differences. One shop even did a Halloween version.