Great Deal
My wife and I live in Seattle. Recently we had to travel on short notice to Denver because of the death of her mother. During that trip, we had to go through a full-height filing cabinet containing financial records for the last decade and more. Most of the documents were harmless, and could be taken to a recycling center. About 600 pages of these documents were such that we were not comfortable with recycling them, and wanted to shred them. So we started to search Google for a place to do this.
Although you were well hidden on the web, we discovered that you had a machine in a mall near where we where staying. We took the documents there, spent $2 for four minutes of time, and 600 pages disappeared. Another woman observed what we were doing, came over and asked about it, and left saying that for that price, it didn't make sense for her to slowly nurse documents through her home shredder (I agree).
That was one of the most satisfying purchases I have made in years. The price and the time required were minimal. I only wish you had machines in the Seattle area. We would definitely use them.