These 2 installers Ray and Dave worked so well together as if they were one and they were so respectful and professional. They made sure I understood everything from the care and maintenance to the programming of the thermostat and not to forget Tom the salesman he was awesome also. What a great experiance. The price was about $800 higher than the lowest bid I recieved but the experiance of Dyksta and quality of the Carrier product line meant more to me than the savings