These were bought to replace old cookie sheets that look like they have been through the wars.  Although I have not had these new sheets for long, my impression is good quality.  Heavy without being ridiculous.  My plan is to always cover the pan with foil whenever I cook--or line with parchment paper if baking cookies.  The attempt will be to keep the pans looking new for a long time.  Personally, I hate scrubbing sheet pans.  I would recommend this brand, Nordicware, based on the quality of these pans and the other pans this company makes, such as the elaborately molded bundt pans of different designs.