I went out and bought a new smart thermostat for my home. I was pretty excited about it. Because I had been wanting a smart thermostat for the longest! And I finally went out and bought one. The let down with this was that the smart thermostat did not work! There must have been some kind of manufacturer defect in the smart thermostat. I ended up having to take the smart thermostat back to the store where I bought it and got an exchange. When I took the exchange smart thermostat home and hooked it up it worked great! And not to mention I ended up getting a discount. But now ever since I have had a fully working smart thermostat it has been so much easier to use my central heating and air conditioning system in more ways than one. The central heating and air conditioning system is not having to stay on as much thanks to the programmable part of the thermostat, which in turn is saving me a lot of money on energy use and reducing my bills. That is the best thing about this smart thermostat that I have purchased. I really would suggest for anyone that does not have one yet to go out and buy themselves a smart thermostat for their central heating and air conditioning system unit. This will make life so much easier for you. I can not even explain how much I love this smart thermostat! It is really the best thing I bought in a long time.