I don't have much experience and can't judge every product on its own, but I am trying to find the best products. I will not judge a product that I don't use, I will let the readers decide.
You may be surprised to find many different brands of supplements out there. Many products don't use the exact same ingredients, and there are many different kinds of pills and powders. I have tested many different brands and some don't work very well. But I can tell you one thing. Most of the time, a product works great if you use it exactly as written. I have been on several diets and I have never once used a supplement and it was not a huge success. Some supplements are better than others. If you are looking for a particular brand, just ask the salesperson at your local store, and the store employee will likely have the product in stock. If you find the product you like and use it frequently, then you will get good results. The most common mistake people make is they start with the wrong supplement. They buy a product with a label that says they contain no whey or some other form of protein. A lot of people use creatine, which is an example of this.