The PetSafe Premium Crystal Litter is a great choice for low dust and litter tracking issues. This product works very well to absorb the urine when directions are followed. Gentle stirring is required to help in optimal performance of eliminating urine odors. Feces sit on top of the litter and must be scooped out promptly to eliminate those odors. This product does not work as well in bathrooms or basements because these crystals are meant to absorb moisture. Overall, this crystal litter works quite well as an alternative to clay litter and does have longevity.