When I was still playing with it and it was sitting on my desk I did notice that it ran a bit warm. Not hot enough to be a concern but now you have me thinking it might be an advantage in cooler climates. The lack of a battery makes me less concerned about cold as well. I've only had it a few months but it seems far more reliable than the Ring doorbell I'd been using previously. I do have it rebooting nightly but I haven't had to touch it in months. Winters here don't often go below 0F anymore. I guess I'll see how it goes.