The grill to go is a good concept, but the grill surfaces DO wear out after one to three seasons, and there is no easy way to find a source for replacements. From the research I've done looking for new griddle and grill replacements, I'm left with the impression that this is because CHARBROIL (who either bought out, or manufactured the product from the start under the thermos name) doesn't wish to provide customer support to this product that doesn't have their name on it. Bottom line, My Grill to go is now useless because I can't replace the TEFLON grill surfaces that are damaged. My advice is to stear clear of the "Thermos" grill to go (and I plan to do the same for CHARBROIL") and find a name brand portable grill that will be around to support replacement parts that you will understandably need down the road.