This is our second GE Profile range. Big selling point: no exposed element on bottom of oven! No grease/pie spatters hitting a hot element! But after the first use (on medium heat) there is a rough ridge on the outside ring of the large burner. We have tried using Weiman Glass Cooktop cleaner multiple times to no avail. Also there seem to be some light spots n the surface. Finally, we had to get a repairman out to get the oven broiler to work. I took a photo but I think it was deleted when I returned to the review.