Yep, first thing to look at is the inside of the cabinet. Particularly the bottom panel. If it is all rusted, then move on. The frame on the left hand side next to the cook box is another issue right where the bolt goes through to hold the cook box to the frame. That small area is prone to rusting out really bad and sometimes you can't really see it until you get the cook box out. If there is rust or paint bubbling on top of the frame cross member in that spot, you can be rest assured that it is much worse on the inside of the cross member. That, however is not unique to that grill model. It basically affects all the older Genesis and Spirit grills.