I purchased this cook-top and had it installed on 5/1/2018. Today is 6/10/2018. I purchased all new GE appliances as I am selling my home and wanted to offer all new appliances. I intended to not cook on my appliances but there is a delay in listing my home for sale.  I have cooked on the cook-top for less than a month to boiling water and cook eggs a couple of times. I use my outdoor grill for major cooking. I take great care to place my pans. I do not move them across the grates. Well the grates are looking horrible, losing the black coloring. Also, the enamel paint on the cook-top has what looks like bubble pits that I cannot remove. I want the appliances to look new when my house is being shown and this cook-top is not looking that great.