Dustin (the technician who came to our home to repair the gauge and fill our tank) was persistent as he made the repair required on our 35+ year old tank. In addition, he was very polite and personable. If I were in business (I was in business for many years), Dustin is the type of employee I would value highly.
I had ordered on line at a special price. When it went through, however, I was charged at a higher rate. Then I received a wonderful email that this mistake had be caught so that saved us a whole lot of money!!