The cookie sheet works just like other sheets. It's easy to clean. They are durable and seem like they are made of really good quality so it may last you a long time. I would recommend them to any baker.
The only good thing about these cookie sheets is the sizes. All of mine warped the first time I used them and I only use them for cookies and french fries. both baked at 425 degrees.
I bought these pans to replace my old, dirty pans, and I have to say they've been perfect so far! You get three different sizes, which I really appreciate. You can also tell that they're made with really high quality material. They're sturdy and can hold quite a lot of food. With some pans I've owned in the past, I've noticed pans can warp in the heat of the oven, but that hasn't been an issue at all with these! Lastly, they're extremely easy to clean and I've had no issues with hard, stuck on food!