I have been using your glass cook top stove cleaner since I bought my stove five years ago. I recently tried another brand of glass cook top cleaner because it was in a spray bottle that I thought might be more convenient. I had to let the "other" brand sit on the cooked on gunk, and my husband couldn't even remove the gunk with a little elbow grease. I just purchased more Weiman cleaner and it removed the gunk with tremendous ease. The "other" brand doesn't compare in any way to your product. Thanks for your wonderful cleaner. You have a faithful customer in me.