My wife bought me the Weber S-470 gas grill 2 years ago for my Birthday.
I had a Weber gas grill for 18 years prior and it was the best.
Really did not have to do any thing and it work like a tank.
My S-470 stainless steel grill is failing.
The trim around the knobs is pealing and cracking. 4 of the igniters are not working and been cleaned several times but now they are all rusted and fell out, So I need to use a lighter to get the grill light.
Last is the gas meter doesn't work. If I press the button to see how much gas is left 3 lights light up, Full, Half way and then . empty.
I use the grill a couple times a week and also keep the grill covered when I'm not using it.
My other weber  that I had for 18 years I never covered and only had to do very little maintenance for the upkeep.