I had Pets Best for several years. I was pleased at first but have had several problems with them recently. They told me they would cover a treatment (after an extensive detailed conversation) and then changed their decision AFTER I went ahead with it. I heard they were bought by Aetna recently, and since then, my vet has said that many of his clients have had trouble with them not covering things they did before. Beware of them....I am looking to switch to another company and am very upset with them. I feel I was treated very unfairly and unethically.