I think mannnny people are lazy, and that is why their litter boxes stink.
I also think companies come up with perfume-y nasty smelling littler that pleases the owner, but makes most cats have allergy or respiratory issues. Kinda like a lot of ingredients in pet foods...screw the pet, please the owner!
I'm just yapping out loud about what they claim this litter does ... urine "magically" disappears (my words, not theirs), because the litter turns back to it's original state. I can't grasp that, but that doesn't mean it isn't possible.
If it truly IS safe and the urine does "disappear," I think I would give it a try.