Nest 3rd Generation Smart Learning Thermostat: Take control of your home's heating and cooling without lifting a finger with this thermostat, which learns your habits and adjusts to automatically regulate your home's temperature based on your schedule. The Nest Leaf feature alerts you when you choose a temperature that's energy efficient.
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Beware, go to Nest Community comments before buyin
on January 24, 2016
Posted by: motouser
from Chicago, IL
"Smart functions" are not great. I've had this for 3 months. Never worked as advertised. 4 software updates in that time that you can't refuse and they are riddled with bugs. "Early on" has only worked once. Either fails to work or doesn't reach temp by the set time. "Auto away" is only good if it sees motion all the time. "Time to temp" only works with a manual change of the dial, not at a programmed change. Don't be fooled by the display. The large temp looks pretty but that is the set temp, not the room temp and you can't change it. Customer services is great and they are polite and try to help but they get no backup from programmers. Customer suggestions are ignored. No response since 2013. End result, no better than my programmable thermostat which was less than half the price. And that worked much better at reaching the set temp on schedule. Also, Nest does not control 2 stage heating reliably. Check out the horror stories at the Nest Community comments.