Pro Can turn on/off automatically based on your location
The Lyric can turn on and off based on your location (or, more specifically, your phone's location). By default, this geo-fence is 7 miles, giving the thermostat enough time to get the back to a comfortable temperature. This can be changed, all the way down to 500 feet if you have a short commute.
The geo-fence feature can sometimes set the thermostat to 'away' while you're still in the house.
Notifications also don't always make it through, as sometimes all you get are generic looking error messages.
These bugs are likely to be fixed through future software updates, however currently they come as part of the product.