"I wanted to drop a line to let you know that I was impressed with the fellows today. Besides the GPS hiccup (certainly not any fault of theirs), they were punctual, efficient, friendly and knowledgeable. I'm just a dumb cop, and I asked them tons of questions because I was legitimately curious about how some of that stuff worked. They answered my questions with patience and a friendly air about them. I'm very pleased with the system and my home is cooling down as I write this. Again, I'm very pleased with the service and professionalism exhibited by Commercial Service employees. I will use Commercial Service as well as recommend you in the future."