We have two Pro Smart Thermostats in our home. One for heat the other for the air conditioner. We have both connected to my phone so I can control the temperature to both. So easy to use and set. Very happy with the Pro Smart Thermostat.
The wifi response on my phone is so slow. It takes one minute after I open the app before anything changes. I have to wait after every tap to go to the next function. Never had any app respond so slowly. At first I thought it was frozen. I called the tech services but nothing is improved.