Aaron was very professional and courteous however the Lennox central air conditioner (less than 5 years old) has a parts failure that should not have occurred. We purchased a model that exceeded the requirements of our home size with the reasoning that it should outlast our homes ownership. We increased our expenditure for the purchase & installation to insure our satisfaction and expectations of the units longevity. WE ARE VERY DISAPPOINTED WITH THE MECHANICAL FAILURE and subsequent additional out of pocket cost.