First, they are quite expensive & it's definitely not worth it. I came in with a concern about abnormal behavior in one cat, and Dr. Becker said yes, that's not normal. And nothing else. No advice, no reason, just ignored it. Then the other cat was having similar behavior & he said it was just a behavior problem. When I expressed concern about issues I've read on the internet about cats with the same behavior he told me I needed to quit believing the internet over him. I politely pointed out I got the info from a vet & he just gave me a rude look and ignored me. Oh, he also told me I need to be a better housekeeper, and that both my cats need to weight the same. Never mind that my older cat is about twice as big as the little one in terms of bone structure. They are rude, over priced, and not helpful at all.