This crystal litter is the bomb. It absorbs fluid well, and there is very little scent (which amazes me after years of trying to mask the smell of litter boxes). I have two cats, and one tray lasts for a full month for us (before the storage compartment for solid wastes fills-up). The cardboard of the tray is durable, and I have not had any issues with leakage (especially since the crystals are absorbent). The lid makes it all quick and easy to dispose. I appreciate that they offer a pack of three so that I have replacements on hand for three months. These crystal litter trays combined with the Scoopfree system have truly made life easier for me and my two cats. They no-longer have issues with sharing a box (so I no longer have to clean-up messes), and instead of scooping two litter boxes twice a day, I now only have to switch-out a single tray once a month. I am very happy with this product (and so are my cats).