Whole house is really nice, and we finally convinced my 84 YO mother to get one. Now every time there's a storm I check the power company website, waiting for the first time that her power goes out.
Nothing is perfect though...
Several years ago there was a major storm in Western Maine and power was out for days. I happened to be doing a property line down that way and went past a widow's house. We started talking and she said she'd been out of propane for several days, had no heat, lights, or way to cook and they wouldn't fill her tank because there was a downed power line across her driveway. Even though it wasn't live they still couldn't risk it.