Well, I wouldn't switch back to Ceran after having induction. It's much more direct and faster. Even better than gas, only that it's much easier to clean than a gas-Ceran cooktop (that's a hassle - my brother has one). The noises are there, no doubt, but when I'm done cooking, they're gone too and while cooking they don't bother me. It would be annoying if you were keeping something warm and sitting at the table, you might hear it then. But that doesn't happen with us.