My cat Peaches likes to pee standing up. My cat Coco poops over the litter box but pees in it. Health wise they are fine. I bought litter boxes that are low when they step because Josie has arthritis. The litter boxes are 70% nonstick so they feel different when they step in. I could change back to what they used to use except for Josie with her arthritis. . One in bathroom,2 in bedroom. No room in living room. I think the 2 in my bedroom I will change to what they used to use and Josie mostly uses the one in my bathroom. I could start using covers but I don't want to mess with cleaning the cover and they have used litter boxes without covers most of thier life. Very frustrating.