That's fair. I was just curious if you had heard something or someone had told you something that strained credulity. I don't there's an objective "best" or "worst" salt mix. I'm not aware of a single major manufacturer that makes salt mixes that are unsuitable for use in reef aquaria. The cheapest-of-the-cheap, Instant Ocean, has been used probably more than any other salt mix. Many SPS fanatics have used this salt for years and had great success as a result (Jason Fox for example runs IO exclusively).
Which salt mix is best for you might vary based on several factors including price, availability, parameters produced (calcium/alkalinity/magnesium), etc. But I think you'll have good success regardless of which you choose
