My wife signed us up (without my knowledge). Some lady called a few days later and was very polite. I agreed to let them send a technician to test my water. The "technician" never called or showed up.
Lucky you. They would have certainly found something wrong with your water and sold you a worthless water treatment device that is extremely overpriced. Have your water tested by a respected water treatment company or plumber if you feel that you need to. All public water systems have to be tested and certified by the Federal Government, and the reports should be readily available.