As close to perfect as cat litter can get. This all-natural litter is made from recycled grass and clumps firmly. There is no odour to put you or your cat off and this litter is truly almost dust-free. I am highly sensitive to dust and every other natural litter I have tried has been far dustier. I won't use deadly cancer-causing clay-based litter because I prefer not to expose myself or my cats to them. The only downside to this litter is that it does track, but since every other cat litter I have tried tracks as well I can't complain.