I have to say that I am amazed and very pleased with my programmable smart thermostat.
During the summer time months of the year it comes in real handy when I program the central air conditioning system to come on and shut off at the same times every single day.
I have it programmed to shut off around the time I am out the door for work in the mornings during the weekdays. Then in late afternoon about a half an hour before I come home, the programmable smart thermostat turns on the central air conditioning system so it is nice and cool by the time I walk in the door. This is done to save money on energy use. I am the only one who lives in my home, so having the central heating and air conditioning system unit running when I am not home is a complete waste of energy and causes my electric bills to be much higher than they have to be. Without a programmable smart thermostat, I would not be able to have such control over my central heating and air conditioning system unit. Some people completely down the idea of the smart thermostat because it is ran by a computer. Yes there may be some issues sometimes. But it is all worth it because of what a miracle it causes in saving energy and controlling my central heating and air conditioning system unit. I would not have it any other way in the world.