I saw that thread, but based on the comments in the last month it is only a partial integration for any of the models that have automatic scheduling. The automatic scheduler, which most of the redlink models have, conflicts with the settings from the smart things smartapp. So people do not get the results that they want.
Those people who just set the thermostat like it was a dumb thermostat to a single value and then use SmartThings to change it to a different set point value later probably find it very useful, but I wouldn’t say it was a real integration Yet even for those using the Honeywell cloud service.