Nick was the consummate professional. Carefully and objectively explained all options, and was candid regarding pros and cons of each potential option. Subject Matter Expert regarding my A/C and heating system. Completely thorough in demonstrating the operating and indicating functions of the surge protector upgrade that he installed, to include how to reset the units in the event of a power failure. Conducted a comprehensive review of the work order and warranty compliance requirements. Bottom line: Quality and customer service far in excess of my expectations, and of a caliber rarely seen these days.