I have a Honeywell Lyric T6 Pro Z-Wave Plus Smart Thermostat (TH6320WF2003) and have been living with it for a while.
It mostly works in Indigo. I have two small issues.
First issue: Unit somehow does not pass temperature sensor updates to Indigo reliably. I find that I get regular updates for the device state (including whether the unit is heating/cooling, whether fan is running, etc.). I also get frequent updates to the sensed humidity. For some reason, I do not get regular updates to the sensed temperature, at least with the device settings set to "enable polling: yes, poll-device: only when activity detected". I have recently experimented with changing to polling every 5 minutes, and with that setting, as expected I see a lot more data coming from the unit, but I can also see there there are a lot of changes that are being ignored and not getting sent when the unit is in "only when activity detected" mode. So I suspect that something is wrong here either in terms of how Indigo is figuring out when to poll ("activity detection") or with how it actually polling the device. Looking at graphs of updates, I see humidity changes arriving many dozens of times per day, I see heat-on/heat-off changes arriving multiple times per hours, but I only see temperature updates arriving a few times per day on average. Further confirming that there is some kind of problem, if I randomly click the "send status request" button in Indigo, I'll often see the temp update and shift more .5, 1, or sometimes even 1.5 degrees. So I may possibly be misunderstanding what it means for polling to be set ON and to "only when activity detected", but it seems clear that Indigo is recording easily 10X more changes in state for this device (to humidity, for example) than it is recording changes to temperature. In other words, evidence seems strong that Indigo is NOT polling the temperature whenever there is "activity" on this device.
See attached screen shot from grafana - where you can see the left half of the plot with polling set to "only when activity detected" and the right half of the plot with polling every 5 mins. You can see dramatic change in the blue line (temperature), but little or no change in the red line (humidity).
Second issue: Unit has three settings for fan mode - on, auto, and circulate. Indigo only recognizes the first two. Manual describes circulate mode as "The fan will run at random intervals at least 35% of the time to keep air circulating throughout your home." I like using this because it keeps temperature balanced and also keeps air filtered. I can set this mode on the thermostat itself, but can't set or detect it from Indigo.
Here's are the device z-wave details:
Z-Wave Indigo Device " Thermostat 0FA" Z-Wave Properties:
Indigo Z-Wave Version: 7.4.0
Node ID: 52
Model: General Thermostat (v2)
Model ID: 00110008
Manufacturer: Honeywell
Manufacturer ID: 0039
Protocol Version: 4.61
Application Version: 1.03
Model Definition Version: 0
Library Type: 6
Class Name: General Thermostat (v2)
Class Hierarchy: 04 : 08 : 06
Command Class Base: 40
Command Versions: 20v1 40v1 42v1 43v1 44v1 85v1 86v1 81v1 80v1 6Cv1 70v1 71v1 72v1 73v1 55v1 59v1 31v5 9Fv1 5Av1 5Ev1 45v1
Encryption Status: Not Supported
Multi-Endpoint Types: - none -
Multi-Endpoint Classes: - none -
Multi-Instance Counts: - none -
Features: routing, battery, beaming
Neighbors: - none -
Associations: 1:[1]
Config Values: - none -