For all of its quirks and eccentricities, I will say that since we added insulation to some key areas, the temperature inside is usually considerably more comfortable than that of the outside.
I had no idea it was so warm out today. I spent the morning doing chores inside, including baking bread. Right now it's near 80° outside (very unusual for this time of year, by the way), but inside, it's a very comfortable 69°.
In fact, when I was looking out of the windows just a bit ago, watching the wind blowing the baby chicks' feathers, I was thinking they might be a little chilly, seeing as how this is their first day out of the house and all. They aren't. Not at all. In fact, they're panting, because it's so warm.
But it is cool inside, naturally cool, because we have no air conditioner.
That's why I'm lovin' my house - warm when it's cold out and cool when it's warm out ... without electricity.