Product review (1 stars): Burner is not flat!
This burner gets hot, as it should, but the coils are not flat. The inner most coil turns up ever so slightly just before it makes the turn down to where it plugs in. This creates a high point. When we set a pot or pan on the burner, it rocks. Very annoying, plus it does not transfer heat to the bottom of the pan efficiently. When you put a little oil into a pan, it all pools to one side because the pan is leaning.

I will not buy another.

Incidentally, we bought two 6" burners at the same time and they are flat and work great.