I'm a somewhat recent transplant to Austin, and while ultimately I like it here, I don't think I'll ever like the weather. I'd prefer extreme cold to extreme hot any day of the week. At least you can get warm when it's cold, not nearly as easy the other way around.
And sleeping! I can't stand to sleep in the heat, but love to get comfortable under a warm blanket. That being said, you expect the heat here so most everything is air conditioned...Guess I don't really have much to complain about.