Has not been an issue for me (I do have a second generation). I believe there was a firmware fix sometime down the line. Actually that is another plus, they hav

Has not been an issue for me (I do have a second generation). I believe there was a firmware fix sometime down the line. Actually that is another plus, they have been better about updates than Nest. My Nest actually stopped working on more than one occasion after a software update. My thermostats are in areas that are not indicative of the actual room temperature at all so the sensors are useful for me. I don't have a more complicated setup with dampers to divert air to a specific room, but that could be a cool addon if they made it compatible.