My 17 year old cat was having trouble with the litter box.  We tried putting more litter boxes out, but, he just was using the floor.  We couldn't keep him outside because it's too cold at night.  So, this seemed like the best option for him. My husband made some modifications--He added a ramp, and carpeted the ramp and one of the shelves.  My cat wasn't crazy about it the first few days, but he has gotten used to it now. He has food and water bowls, and his own litter box.  It's pretty easy to clean this playpen. I would recommend this as a humane option for someone in a similar situation.