We have had an Aussie Bonza 3 gas grill for 4 years and it has crumbled from the inside out. Originally, we thought this grill was sturdy enough to last 10 years or more and we loved the way it cooked. After only 4 years, the grill still looks great from the outside but the main body of the grill has rusted out from the inside and all of the burners fell out through the bottom. We never used any corrosives or any cleaners on the grill to cause this to happen. Looks like we'll be going back to the old aluminum body grills.