Omega 3-6-9 Formulas like Country Life Ultra Concentrated Omega are different than fish oil in that they boost both types of essential fats, the omega 3 and omega 6 (omega 9's are not essential nutrients). Most people get plenty of the essential omega 6 from meat, dairy and vegetable fats, so they only need extra omega 3s to put their omega fats back in balance. That's why fish oil is the most popular type of EFA supplement; it's the best source of essential omega 3 fats.
But there are plenty of situations where a person is better off with a good 3-6-9 formula like Country Life's. A 3-6-9 formula is absolutely essential if you're on a low fat diet., on a low-calorie diet to lose weight or have a bland diet that lacks a variety of foods.