I am a Terminix customer and have been for many years in my current house and in others. Relationships such as these can be awkward as they require that employees routinely visit and sometimes come in the house. But I have to say that your employee Chris has done in excellent job in this regard.
It is unusual to find an employee that can be authentically nice — not simply positive or polite for the sake of business. It is even more unusual to find such a person that can be so professional, knowledgeable and willing to help. In Chris, you have all these characteristics. He has been my account representative for several years now and after his most recent visit where he continued to demonstrate this high level of professionalism, I felt compelled to relay these observations to you. I suspect that too often these day, the letters you receive are complaints — given Chris' performance, I wanted to be sure you were aware of his excellent work as well. I hope you see the value of his efforts.