Had the thermostat for about a month. It's a good replacement for the Nest I had in the previous house. The Honeywell website is decent, but have had a multi-hour outage for a software upgrade that seems less than what enterprise level application should be in availability. Hopeful that they learn from the experience. Also, hopeful that the thermostat lives up to the reputation of reliability that Honeywell thermostats enjoy.
Both the wall mounted unit and wifi app work well and function reliably. I wish there were more adjustments possible. Allowing me to change differential temperature settings would help reduce tendency to short cycle the AC which is inefficient and wears out the equipment. It would also be nice to access a report of the on/off times of the system.