I have an induction cooktop and in general am quite pleased with it. But
the recent thread on cooking with a tangine got me to thinking. I've seen
large metal disks advertised on the web that are supposedly designed to sit
on top of an induction element and enable the use of any kind of cookware,
including clay and other ceramic things, but these things seem to be
getting mixed reviews at best. Some folks rave about them, some say they
simply don't work, and most frightening, some people report the disk had
caused permanent damage to the cooktop.

Does anyone here have any experience with using an induction disk and any
advice to offer?

TIA...