If you're interested in it, I'd suggest buying a box of it, some "normal" Speer Gold Dots (or any other mainstream premium JHP ammo), maybe some +P JHPs, and some Winchester White Box 115gr FMJs.
Take the whole mess to the range and shoot a few of each in turn. Mix them up in one magazine. See if you can feel any difference at all. (I can't.) If you want to be thorough, look at the ballistics data on them, but then notice how small the differences are.
Personally, I load Speer Gold Dots from Gerogia Arms (over 600 rounds between a Glock 17 and a CZ-75B while doing a little limp-wristing; no failures) and also keep a loaded mag of WWB FMJs as a spare (thousands if not tens of thousands of fired rounds and, while I can't say with conviction that they've never failed, I certainly cannot recall even one failure of any type).