Youngest daughter gave me some Yoshi copper grill mats for Christmas several years ago. Used once and they're either packed away somewhere or I gave them away. Useless IMO.
OTOH. Miriam has some silicone mats that she uses for baking and loves them.
Looked at my old orders. Bought this one in 2016 and probably have not used or seen it since 2016. All I remember is burgers would just lay there in grease like frying them in a pan. May have been alright for salmon, but a griddle is better