@dgornik The ST scheduler has a dark past. The new version (Ticker) has been much more reliable. That’s not to say that it hasn’t had its problems, but ST has been able to fix it quicker and truth be told, it has been pretty reliable. All apps, and I mean all apps that use scheduling will likely have a problem if the scheduler fails. That being said, I have not had to reauthorized my ecobee’s for 9 months (even making it through some of the scheduling issues and ecobee server maintenance).
I use the schedules on my 6 ecobee’s (not the ST scheduler), but I use event driven activities to force my ecobee to away mode (and it works great for the four of us in the house). This has been extremely reliable and I am not dependent upon thermostat or remote sensor location/placement to detect when I’m home or away. Plus the pets cannot inadvertently trip the motion sensors on the thermostat or remote sensors and fool it into thinking we’re home. Our schedules varies quite a bit, so I have found this to be extremely reliable and by far the best solution available.
There are three viable options available. I have tried all three. If you have specific questions, please PM me.