Cooktop replaced 20-yr old GE glass top.  Cooks fine, but easily "turns" off if you accidentally touch controls.  Far too sensitive.  Cooktop is elevated 18" due to foam tape between top and counter.  Perfect area to collect crumbs, dirt, food, spills, etc.  Messy.  Also, elevated top allowed me to "break" the glass by simply sliding a 2-qt pan from the counter to the top.  Should be flush against counter top....  Big dissapointment.  Love GE and have GE everywhere.  But this appliance is a fail.