I currently have my cats on Purina urinary tract health formula because Chester had a UTI three years ago. I've just changed my dogs to a premium dog food and really want to switch my cats as well. I asked my vet and all she said was that its possible that switching could set him up for another episode. So, I've decided that I think I like the Chicken Soup for the Cat Lovers Soul food. I pretty much only feed dry food, and my cats are a little overweight so Im thinking of trying the lite formula. What are your opinions on this food, good or bad?