Me and my neighbours were getting our roofs redone.and removal of my back porch the noise and banging was so loud.. my scardy cat anyway was definitely 100% more relaxed with this product. The smell is strong for a few days but does go away .but its bearable to see your cat more relaxed. I made a safe place under my bed.and used the spray on a blanket .when i went to work..when i was home for lunch he came out and lay for cuddles whilst they were pulling down the porch. .He inst a lap cat as his dad was wild. But is loving .on his terms .but now he comes and lies beside me. .it has defo relaxed him all round. So much i will buy refills and just keep it on at all times. . I also seem to be sleeping better too. So a great buy.