Review on Nutrichef Nonstick Cookie Baking Medium by Jessica Sanders

I recently used a large frying pan to eat. The baking sheet was placed in an oven preheated to 400F and deformed during the 30 minute bake time. The description says it fits the 445 F and is "guaranteed NOT to wrap", which I think means "warp", but maybe they literally meant it won't "wrap" all the way ? Well I'm disappointed with what I've seen so far. The nonstick coating worked well but doesn't make up for the pan warping. Didn't use a smaller pan so don't know about that but don't expect a difference.