I got this cat litter box hoping it would be helpful for my foster cats. The set up was easy and painless. The bottom container is not plastic. It’s paper with lining. They want you to buy replacement trays. The litter itself is supposed to absorb the urine which it did but often got stuck to the cats fur. And doesn’t work to clean diarrhea. Only works for hard stool and you spend more time cleaning the litter box itself. It helps if it’s hard stool and the urine does get absorbed which is nice. Need to replace litter monthly and they suggest buying their litter not any litter. I thought it would be a litter pan and could use regular litter so this was a little unexpected.