I had one named piglet when I was younger and loved it for the most part. He only liked me and wouldn’t let anyone else pick him up but would just walk into my hands. I fed him guinea pig food as well as vegetables. Do not overdo it on the vegetables or they will get diarrhea. My one pooped a lot, think of the mammal version of a pleco that can flick it out of his cage with hind legs. They can’t climb but I would suggest a top since you have cats. You are going to have to change the litter A LOT, as stated earlier they poo all day. They need some wood to chew on for their teeth and a place to hide. I had a hollow log in there so it provided both. Hope this helps, they are a really great pet and bond well, especially if gotten young. $10 for 2 with a cage is a steal, good luck and have fun.