Salt selection is by far your own personal decision. I personally use Reef Crystals and HW Marinemix. But I will give other salts a try in the future if I honestly think that it might be better. I am a "trying" person by nature, always looking for the most convenient and hassle-free setup. If there is a salt mix that needs no adjustments or supplements besides matching the salinity, please let me know. I will even give you some money.
If you are using it in a reef tank versus a fish only, I would suggest that you do some tests of your own to see with what you are most comfortable with. Some reefers test the makeup water before the water change and supplement accordingly, some test the tank water after the change and then supplement accordingly.
P.S. From what I have seen, Red Sea Salt is another good choice among many!
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