This thermostat performs best when several remote sensors are added throughout your home and fan is set to circulate air keeping temperatures uniform. User interface is easy to master and outside weather information has been pretty accurate. I'm looking forward to peace of mind with WiFi access when we're traveling.
The Honeywell T9 works great and the remote temperature sensor eliminated the need to relocate the thermostat to a more suitable location. Note - The T9 is a vertical design that does not cover the outline of older thermostats so Honeywell has a plate kit (THP2400A1080) that works perfectly to cover the old paint outline, etc.