The assembly instructions were somewhat vague and pictures not were not detailed enough to follow easily, i.e. which way a panel should be orinted. The fasteners were all low grade, threads strip easily and a couple of the screws were not designed long enough for the application. I had to purchase a longer screw to assemble parts more securely. The overall quality and durability of the griddle seems good but only time will tell how well it lasts. I would expect better fasteners for a product claiming to be the best in the industry.