Is the Nordic Ware Naturals sheet pan set worth it?

Here's the mechanism worth understanding. Aluminum conducts heat fast, which is why bare aluminum bakeware browns food more evenly than heavier stainless steel, there's no lag between the pan's center and its edges, so a full tray of roasted vegetables or a sheet of cookies comes out the same shade all the way across. The trickier problem is what happens to any thin metal pan over months of oven heat followed by a sink full of cold water: it flexes, and eventually it stays flexed. That's the warp. Nordic Ware's answer is the encapsulated galvanized steel rim, a stiffer frame wrapped around the edge of the aluminum sheet that resists that flex cycle, so the pan stays flat use after use instead of slowly cupping into a shallow bowl. A flat pan matters more than it sounds, a warped one rocks on the oven rack and pools butter or oil into one low corner, which burns whatever sits there. The set covers three footprints, quarter sheet for small batches, jelly roll for shallow bakes, half sheet for full trays and sheet pan dinners, so the same flatness and browning carries across whatever size the recipe calls for.