I bought a Pet Turf and installed it outside our back door which is also the doggie door for our two poodles. For two years I have been mopping up muds of paw and human prints whenever it rains or snows. Now, even though everyone walks across my artificial grass before entering the house, the dirt inside is significantly less. The dogs absolutely love their new lawn. They seem to spend more time outside and moving their toys on the lawn. I occasionally use a leaf rake to stand the blades up and to clear away leaves and rocks that accumulate over time. I am very happy with this product!