Abdel provided a fantastic service to maintain our AC. He is very polite and knowledgeable. He answered all my questions with a lot of patience. Although this Is a regular service, he did a very thorough and detailed checking up and cleaning up on our AC system with 2 units. He double checked the performance of our AC to make sure the air is cool enough. I am so satisfied with his work and his positive attitude to his job. Your company should know that you have such a professional engineer/technician providing the promised service to your customers!