Schedule that is NOT internet dependent (safer)!
If you are on holiday and your internet drops, Tado continues with whatever setting it had at the time. In other words, your hot water could be ON for the rest of your holiday, not a good thing (and you will not know about it as you no longer have remote access). This is the one flaw I find in Tado. It appears that schedules are stored in the Tado cloud and not in the household units. Other remotely controlled systems I use store their schedules in the actual units and so this survives internet outage.
My suggestion: store scheduing in the smart thermostat or controller and not in the cloud. In the event of an internet outage it's better that a schedule continue to operate than a specific setting. This locally stored schedule could still be remotely controlled while there is internet.