I purchased the 4315 version in November 2021.  This version cost a little more but included the griddle for the center burner.  We like the range and the two ovens, but the griddle is a big disappointment. It is used every day to cook breakfast; bacon, eggs, sausage, or toast.  No metal utensils ever touch the griddle.  It is washed with a sponge and soap and water.  The non-stick coating started coming off after only a few weeks of using it.  Scratches are appearing on the surface and getting larger.  The edges of the griddle are also starting to show the aluminum.  Again, we like the range but if this is an indication of the quality we should also expect from the range then I would be concerned with making a future LG purchase.