This thermostat does all that it promises. It works! I can't over emphasise the pleasure derived from making an app selection on my iPhone and then seeing my current HVAC situation...or waking up in the middle of the night and its too hot or too cold and just reaching over, grabbing my phone and correcting the situation. I'm not spending much time discussing the reliability of the controls because it is not a factor. The first Honeywell thermostat I had in my house was in 1965 and we had heat and air, I was 10 (my stepdad designed controls for Honeywell). I've had a variety of thermostats over the years and Honeywells were always my favorite, because of reliability. I was thrilled to look at my new thermostat after a downstair system replacement and discover it was a Honeywell! And even better it opened the door to WIFI control off my system. I am currently discussing with my HVAC company the possibility of putting a similar thermostat on my upstair system.
I purchased this thermostat based on the recommendation of our a/c technician. We had a nest and it was not compatible with our home's system. We have only had it a few weeks but it seems to work as promised. I would like to see how much we actually save over the course of the next few months. I would like for it to be a little more appealing on the eyes. Maybe in the next update there can be a more stylish look like the nest, or added colors to the system itself.