Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Very rusty side fire box!

I purchased the side fire box to add to my grill. I quickly found out that the exterior of the product rusts & corrodes, even after being covered. I followed all the instructions in the manual and rubbed oil on the exterior, but nothing prevented the rust. The Char Griller company refused to assist me when I contacted them and did not stand by their product. Not a good buy if you want a product to last!