Same here, been using it for years in Lamy Safari, Shaeffer 100, and Noodler's own pens, as well as Preppy Platinums. Would I put it in a vintage pen? Absolutely not. Modern <$100 pen? Most definitely.
I did have one mold issue with Private Reserve in my TWSBI, and to be safe I have avoided using it in my Vanishing Point. I may be being overcautious though; I'm not sure how much to extrapolate from that one incident. My mother is an artist and has used several dozen Private Reserve inks spanning over a decade, all without any issues.