Having a smart control component is the best thing in the world. You can really have a lot of convenience with running your central heating and a/c plan component this way. For me, I have the same plan every single day with my central heating and a/c plan and my smart control unit. I use the programmable feature on this attractive smart control unit. I have it set to a particular temperature in the wintertime at the same times of the day, and the same with the summertime, this makes it so I do not have to remember to turn it on or off when I go off to work. And that I also do not have to remember to turn it on while coming home from work. It does it all on its own through the wonderful programmable feature of the smart control unit. Programming the smart control component is pretty straight-forward once you get the hang of it, but at first it can be a bit of a work. I was so ecstatic that the local heating and a/c company that I bought the smart control component from was able to give me an instruction manual to study about the smart control component and every single last thing it does. If I had not had the instruction manual I would have never learned how to officially use this smart control component and would have mistakenly judged it as a piece of junk and gone back to the old control component that I used to have. I am so ecstatic I did not have to do that!