What a wonderful product until it stops working.  My husband and I were so excited about building our new custom home to welcome induction cooking into the kitchen.  We have had the cooktop for 3 years and it just stop functioning.  This cooktop can only be described as tempormental.  We have maintained the top using only the manufacturer's recommended products, so we are very disappointed.  We love the rest of our GE appliances and hate to write such a poor review.