Iron pans

[Old Crank]

11. The more expensive induction units

HAve slider controls to control the heat. That gives you precise heating. It is also faster than gas to boil water.
I have seen some with smart pas sensors. The top knows where the pot is and only provides induction where the pan is. They will turn off when you remove a pot, after a short delay go completely off. Much safer.
The issue with, most, cast iron is the rough bottoms are bad for the glass surface. A previous response says she uses a silicon baking sheet under her cast iron.
Boil overs are easier to clean since the induction top doesn't get as hot as the other type or electric elements.