Had two brand new units installed because my heat was not working. I was told and expected them to be completely installed in one day (a friday). Only one unit was installed and were not able to return until after the weekend. A cold front came through sat/sun and left the downstairs very cold (58 degrees). They finally got the heat on Tuesday and the installation guys did a good job. Poor communication between the person that gave me the estimate - the installers - the office - and the customer.