Does anyone use this? (Preferably someone who can sense whether or not a product was ever within 12 feet of a teensy tiny gluten crumb)

I used it well when I first went gluten free...but then I had that attack and went pure...I'd like to use it again for the convenience and the price; but not if its going to attack me. I'm not sure how sensitive I am to gluten, but corn does me in. So...I'm probably going to cross post this with my corn group. The more feedback the better, LOL.