Well engineered for smoking  but needs insulation around smoker door.  If the cooker was constructed of heavier steel it could go off the charts as a commercial quality product although the cost would go up.  Still a good product for the price. Tip: I bought the Fireblack 125" gasket w/ LavaLock, a High temp Nomex, and a tube of RTV Silicone Sealant from Island Outdoor, LLC.  by BBQ gaskets.com  This works very well. 



Cons: Some pieces were bent when the box was opened.  Very light metal.