I use Ecobee also and have been in contact with Ecobee support since the transition to Edge was announced. As of the last update recieved Ecobee C2C connection will continue to work with basic features. They currently have no plans to add support for comfort settings to Smartthings saying IFTTT can be used for this. I already have an IFTTT account so tried it and it works almost as well as the Ecobee Suite smartapp that will soon end. Only thing I had to do was create a few virtual switches in ST. Hope this helps.