I recently purchased some to go along with my Light My Fire starter and was very disappointed. Before a recent camping trip, I wanted to familiarize myself with it at home. Made a small pile and couldn't get it to catch a spark in two dozen attempts.

Then tried with a Tinderquick and it caught in one strike.

I then took a match to the Mayadust and it lit easily with a match and burned about the same, maybe a little longer than the Tinderquick.

It may work pretty well when a match is handy, but if I had to rely on a flint style starter, I would not rely on it.

Especially for the size, Tinderquick is a much better option for me.