It's nice that it knows when I leave and adjusts accordingly automatically. If I need to come home at a non-routine time, I can adjust from my phone so that it'

It's nice that it knows when I leave and adjusts accordingly automatically. If I need to come home at a non-routine time, I can adjust from my phone so that it's comfortable when I get home. I don't see the need for most smart devices, but the Nest thermostat has actually been really useful for me.