Ive use a lot of different salt. Oceanic, IO, Tropic Marine, Oceanpure and Seachem. In my experience, it doesnt matter what salt you use.....as long as you are testing each batch and adjusting your levels as desired. Many brands that have a reputation for being "stable" often are not at the levels that I want in my tank. Therefore, I add a little calcium or buffer or magnesium to adjust.
However, an anecdotal observation, my tank and critters seemed to respond pretty well when I was using Tropic Marine. Most corals appeared to be more vibrant and open along with my anemone. Of course take this story with a grain of.....salt.