I count calories, and i weigh everything and account for every calorie - even allowing a few calories for tasting while I'm cooking. I have also been doing 5:2 for almost 3 years now. I have lost almost 12 stones, and have seen successful weight loss for the first time in my life. And yes calorie counting and weighing does rather take the fun and the spontaneity out of cooking, but for me it is worth it. I also keep a strict food diary every day, which helps to keep me on the straight an narrow! I weigh only once per week, and record my weight each week. All of these things might seem over the top, but i needed to lose a lot of weight, still do have some to lose, and cannot put it back on again. If that means doing all this stuff, then so be it, but i don't think either is perfect for everyone. The good thing is that there are plenty of approaches to dieting, and if you keep trying, one will surely be right for you. However, i suppose if at all possible it is best to regard what you do not as dieting, but as a positive lifestyle change, because if you diet for a while then go back to the comfortable, comforting old way, then the weight is going to come back too.