Mark is an excellent Service Technician. Very knowledgeable, detailed, experienced and most of all concerned about the customer satisfaction. He really cares about me and the job he is doing. SMALL NOTE OF CONCERN: I am a very loyal customer (You-all are the best!). A member of the Annual Service Contract (monthly fee). My three high end "state of the art" Systems were purchased about 6 months ago (still under warranty). And, am wondering why I paid $79.00 for a service call for low voltage fuse replacement?
