Product review (5 stars): Excellent product.
Excellent product.  This was the same but  a newer model replacement for our old cooktop which has been cracked by clumsy houseguests.  That's the risk with any glass cooktop, but we really like the smooth and easy to clean surface.  The styling perfectly matches the rest of our black and stainless steel appliances.  The various sizes burners are just right for a wide variety of meal projects and the downdraft ventilation works surprisingly well.