I have used slime tubes and like them well enough. There were times where I came out at the end of the day to head home and I had a flat or half flat, broke out the pump and pumped it up and it sealed it self up and never had a problem until the next flat. For the larger holes I was able to just wipe away the slime that was on the outside of the tube and tire and patch with the slime self stick patches. I also always carry an extra regular tube for a quick change if necessary. It sure was nice to be able to just pump the tire up at the end of a long day, or a cold early am instead of having to change out the tube.