The value is just that it helps to supplement on your daily Balanced Diet. To answer the question supplements will either be good for you or a waste of time. This always dependent on how the product is made.
Manufactures are either good and give good quality products or they give fake crab. So before looking into the actual supplement look at the company first. How is their reputation are they well-known.
The next thing I recommend is, have an idea of what your overall fitness and nutritional goals are. How are you obtaining your goals ? The last thing to look at what are your pre and post workout routines. Are you looking for more energy and recovery during and after the workout and are you having protein and carbs during the first 45 min after a workout.
These are all things to think about before picking out supplements. The value is just that they are good but aren’t intended to replace a well planned balance diet but with proper planning and education a supplement program will help to live a well balanced and healthy life.