I tried that product and it didn't work for me. I was camping at the end of a dirt road with larger than usual sized "gravel" - rocks. The mushroom plug held overnight, but on the way out the pressure applied by one or more rocks to that specific area merely pushed the plug into the tire. Probably great if you're on pavement where the pressure is uniform, but I often end up on gravel back roads (by accident- not design).
This guy is super annoying, but I still watched this entire video with comparisons. He demonstrates about here what happened to my mushroom plug....