Terrific, money-saving thermostat. Adding Honeywell's smart sensors to all rooms where people will be allows the system to perfectly balance the heating and cooling on a schedule, prioritizing those rooms with people actually in them. Putting the app on everyone's phones with location awareness additionally helps to save on heating and cooling bills by automatically adjusting the temperature limits.
The Honeywell T9 is with 1 remote gives great flexibility for even heat when using a fireplace insert or wood stove in one room. I had to update my app from Honeywell to Resideo. I am disappointed with the new Resideo app. Honestly the old Honeywell total comfort app was much better. It displayed exactly what your furnace was doing and was much easier to use. Unfortunately the T9 does not work on the old Honeywell app. I wish it did. It was a much better app.