Review on Fox Run 4675 Bread Warmer by Darryl Jennings

I really like the concept of this rock warmer, but it doesn't work as well as I had hoped. It was fairly cheap, about $6. It's really easy to use and keeps bread/buns warmer for longer, but only about 15-20 minutes longer than if I hadn't used the heat stone at all. I even wrap the buns in some rocky napkins and try to seal in as much heat as possible. I will continue to use it because it is definitely better than nothing. I just want it to radiate enough heat to keep items warm while eating.