My son is anxious to install a nest tstat in my home as a gift. My wife and I are both retired. There is always someone home. We're not leaving the house at 6am and getting home at 6pm. Our schedules IMO are not compatible with a nest trying to "learn " our habits. We have none. Our house is 1600 square feet on one floor. I am against handing the operation of my hvac system over to Google. I'm a boomer with no axe to grind when it comes to technology but I think I'll take a pass on this one.