Over time, I am noticing the SMALLEST improvements with this. Meaning it will still react, but maybe not as loud anymore or my tinnitus will mix in the with background noise more rather than be louder than it (fridge running, heater running). it's not always linear, but I am able to notice positive things for sure. I still cannot do fans.
I do have reactive tinnitus. I describe mine as sound reactive tinnitus, meaning noise, especially constant noise, will ramp up or exacerbate my tinnitus temporarily.