I bought this test after my elderly cat started having regular upset stomachs. The results showed us what we needed to avoid in his diet and since then, has been much, much happier. He has been more spritely, and like his old self since changing his cat food to one that didn't have the identified, 'problem' ingredients. The whole process was really easy and the results were received quickly. I had an issue where I had added my home address incorrectly, but customer services were easy to contact and corrected the order. Many thanks from a happy cat and owner.