The Ambiance 425 Grill by Napoleon features unique upgrades from other similar grills. For instance, the black folding shelves offer a non-scratching surface. The dual doors give an easier access to the dripping pan and propane tank. The knobs and thermometer have been upgraded to make life better when using the grill. Plus, the nicest upgrade of them all, the stainless steel griddle and warming rack! This will make your grill easier to clean and will make it last much longer!