Got the products, used them within week. they work really nicely, but, must keep eye on cooking breads in them and "turn" the pan about half way thru cook time to prevent burning. First batch, had minor issue, but second batch, I did the turn method and no problems. This could possibly be due to the exterior being dark and radiates heat longer in a gas oven. Overall, I love them. I am very happy that I was able to actually find the size in permanent bakeware instead of aluminum foil. I am looking forward to ordering more bakeware from eTUNDRA in the very near future.