I finally got fed up with this device and disconnected it today.
It works OK as a standalone manually operated thermostat.
As soon as you try using it as a remotely controlled device the latencies defeat the purpose of it being "smart":
- Android app is exceptionally sluggish, on a flagship Samsung device connected to the same WiFi network it takes at least 10 seconds to change your thermostat setting, sometimes it takes longer or breaks completely
- If you wish to control it from a PC, you have to log in to the website which is also slow and will take you at least 15 seconds
- IT DOES NOT have a local network integration with open sources smart home products like openHAB or Home Assistant rely on a slow cloud-based API
- Every 2 months it looses WiFi connection, instead of retrying to reconnect you have to physically disconnect the device to fix the problem
- It doesn't allow to control it remotely when the Internet is down
It works better as a health device as you will find yourself getting up and walking to it to change the setting rather than dealing with sluggish remote interfaces.
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