My wife and I have known about smart control units for a while. As newer homeowners trying to save our money for a number of updates, each of us took our time when it came to purchasing a smart control unit, but after finally saving enough money, then opting to go online and talk to a number of our friends in order to learn more about the various types of smart control units and their pros and cons. All the knowledge l acquired is that there are really extravagant, lavish smart control units on the market that can essentially operate your heating and cooling plan for you if you program them properly. There was a single brand smart control unit that was researched that allegedly save money and energy automatically as long as the proper information was programmed into it! A high quality smart control unit should definitely save us money after a few weeks. However, the price on that control unit was a little steep, so the wife and I ended up choosing the next best smart control unit for our home. The control unit chosen really could predict how long it would take our heating and cooling device to reach the temperature that was wanted. It was able to adjust the times it operated in conjunction with the time it took our lake house to reach our desired temperature, which ended up saving us a great deal of money! Honestly, I wish it had not taken so long to purchase a smart control unit for our new home. I guess buying it sooner, every one of us would have saved even more money in terms of our heating and cooling costs!