Bests & Worsts Reviews from Amazon

Why are you paying $300 plus for a thermostat that can be controlled from your phone? The rules are: stay warm or cool, winter and summer, day and night. This has 4 time period controls, 7 day capability. +/- 3 degrees in all settings. I've trusted Honeywell for over 50 years. This one runs my major branded HVAC system just fine. A small note, put in the batteries BEFORE you install the face plate, an do the programming sitting down. Once the faceplate is installed, it runs on your HVAC wiring, and the batteries are for maintaining control during power interruptions.