According to the manual you should turn down shortly after initial heating to medium temperature. Heed the one to succeed all previous attempts grill properly. Whether it is a peculiarity of my oven (oval dual board) or the pan itself, that only the middle 80% of the area are really hot, I can not determine, but if you know it, you can live well with it, or barbecue. So Ready or vegetables can keep the edge warning.
Due to its compact form, the pan always comes with the finished food on the table. So everything stays hot longer and brings a nice atmosphere to it.
I use an extra soft nylon brush with water and a little brush is in less than a minute back inside.