I got this for my cats metal litter box from Amazon and I’m never going back! it’s easier to clean, much more sanitary as you already know, doesn’t absorb smells, doesn’t get scratched up. $50 is a ridiculous price for what it is but everything else similar is the same or more $$. My cats don’t kick up litter so I don’t need a shield/high sides. Also I’m gonna be using this most likely forever so it’s not expensive in that case.

I follow Jackson Galaxy’s advice and provide one more box than the number of cats I have (3 boxes for 2 cats). The size I have is roomy and comfortable for my 10lb cats.