There are some things in life that you go a long time without knowing that you even needed until you had it. This is our experience when I got our first smart Heating & Air Conditioning system. This entire time I had had a respected Dial control unit and while it had always served myself and others well, after I got the smart Heating & Air Conditioning there was no comparison. The smart control unit is Superior in every way possible… For starters it can be controlled from anywhere and everywhere. A smart control unit is not limited by your location. These news control units are programmable and can oftentimes be controlled by simply using an app on your iPhone. This is the kind I got and I absolutely prefer it because it absolutely helps myself and others system our life. I got our temperature set on the cooler side, Since getting a smart control unit I have been pre-programming our Heating & Air Conditioning program to be at 65 degrees when I walk in through the front door. It has absolutely worked out great for me. I love knowing what to expect when I come condo and being able to come condo and lie on the couch in our number one spot, I can just relax and care about the AC. Now that I have it I could not imagine living without it. It is far too convenient for myself and others now to ever go back to our normal dial control unit. Ever since getting it I have been a bit obsessed, but I suppose that is a great thing because I have been recommending it to most people I know.