Living in the southern section of the country, central a/c is an absolute necessity, then both of us run the cooling system for approximately many months of the year, and it often needs to handle un-even temperatures in the upper nineties or even triple digits, however system efficiency and reliability are especially important, and when all of us bought our house, the air conditioner was already old and struggling. Both of us knew that it was nearing the end of its service life. While replacing the A/C was on our to-do list of house improvements, there were a lot of projects that took precedence, and a leaking roof, lack of insulation, rusted water gas furnace and broken dishwasher needed to be handled first; There were concerns with the electric not meeting code, jammed drains and water injure to some walls, floors and ceilings. It took us many years to finally make the investment into a new central air conditioner. I can’t even imagine how much money all of us could have saved if all of us had made that step sooner. Both of us paid for many minor air conditioner repairsthat added up to a significant cost! Plus, the seasoned cooling system ran just about non stop trying to keep up with demands. It used a tremendous amount of energy. Our yearly energy bills are quite a bit lower because the new air conditioner is so much more efficient. It also provides far superior comfort and air quality. Both of us have the fortune of zone control and a smart temperature control which helps to further optimize energy conservation and control over the indoor environment. It’s also honestly nice that this air conditioner is covered by a manufacturer’s warranty.