hi, i will also be using it very shortly. Mine is supposed to arrive tomorrow, and my interview is tomorrow. So long as they dont test me the same day, I will get to try it. Please post back and let us know how it worked out. People have told me to practice the temperature at home before hand, a knowledgable person on here said quickfix can be reheated multiple times without harming it. Good Luck, I have butterflies myself