I have only used this for about a month and everything works great-I have not had an opportunity to use the Air Fry feature yet, but can't wait.  The only issue I have is theglass top to the burners.  This is the 4th flat top I have had in several brands and I have never had any issue with the stove top.  Even when I had teenagers cooking all kinds of messes on them, I was always able to get them to look like new.  The first time we used the new LG something was left on the top.  No matter how many times I clean it I can not get it to budge. This is a very disappointing mark on my brand new stove.