The IP is by far the best way to do hard boiled eggs, no gray ring around the yolk and they peel super easy. I've also done a few roasts and those came out great too. I tried to cook a whole chicken but it wasn't completely done so I had to finish it off in the oven (I was going to put it under the broiler for a few minutes anyway to crisp up the skin).

Haven't tried cooking any frozen meat yet, but it's good to know that's an option.