A built-in induction cooktop is energy-efficient and hot within seconds. Heat is generated via a magnetic field. The cooktop itself doesn't get hot, only the pot. If the cooktop is on and there's no pot on it, nothing happens. That's nice and safe, especially when children are around. In addition, a built-in induction cooktop is easy to clean. Spills don't burn because the area outside the circles isn't heated.