Before I bought our grill at Home Depot I did a Google search on the products and read as many review as I could. I was amazed at how bad some reviews were, especially how difficult it was to get spare parts from certain manufacturers.
When we went to Home Depot to look at the grills the difference between the quality and finish of different grills is stunning, and this difference is not always reflected in the price.
Charmglow is owned by Home Depot so you may have better luck with aftermarket service than with some of the other manufacturers.