Arrived to perform Ac tune up. Customer has no concerns. Set thermostat call for cooling. Observe indoor unit, air filter, electrical connection, condensate system, coils and performed temperature readings First unit Return: 72.1* F Supply: 61.1.3* F Upstairs Return: 67.1* F Supply: 58.1.3* F Downstairs unit Return: 70.1* F Supply: 57.3* F Observe out door unit, service coils, electrical compartment, motors, refrigerate lines. Ac system operating ok at this time. I send all estimate by email. The customer said he would talk to his wife about the estimates. The customer is satisfied with the service.