One very nice thing is that you can change the temperature from anywhere. If you're going away on a trip in winter, you can set the temp to 50F. When you land at the airport, you can turn it up to 70F and the house will be warm when you get home. Or if you leave and forget to turn it down, you can check and do it remotely. Or if you're in business, have a varying schedule and aren't sure when you'll be back, you could keep the temp set low, then turn it up when headed back.