I am but I'm off of it for now because I upped my vinegar dose too quickly. My corals are healing at the moment. But when I had it, I rarely had to scrape the front glass. No algae at all. Good coral colors as well if you like pastel.
I'm not doing the full zeovit system though. I'm using Coral Vitalizer, SPonge Power, Amino Acids LPS, and Pohl's Xtra