I also bought this to replace an older model that didn't have the "removable plates" feature. However, the non-stick surface is not holding up, although I've used only regular olive oil and have not washed plates in the dishwasher (both recommendations for keeping the surface "non-stick"). I agree with "Fallback Position" that replacement plates should be available instead of my having to buy a complete new grill. What a waste of a good machine when only the non-stick surface on the bottom plate needs to be replaced. I use my grill several times a week and love it, but wish the plates could be replaced when food begins to stick and surface becomes hard to clean.