Very easy to work with. I just did the backsplash behind my stove and under where our over the range microwave will go. One pack was enough for me. I may have messed up one piece in the learning process. I was able to just use a cutting board and razor knife. All and all it took me about one hour. A few days later we actually had a small fire on the back burner close to the tile stickers and the flames raised very high. Much to my satisfaction the backsplash was safe and just a brand new looking as before. I would definitely call it heat resistant. Would definitely buy again and recommend to anyone.