I recently tried Frontline Plus for Cats, hoping for a reliable solution to my cat's flea problem. While the product initially worked, killing fleas within the first day or two, the effects were disappointingly short-lived. By the third or fourth day, I noticed fleas returning, suggesting that the treatment isn't strong enough for long-term control. It may offer temporary relief, but for persistent infestations, it falls short of expectations. A stronger, longer-lasting formula would make this product much more effective.