I think it was relatively easy to use for this application. The work is tedious, because the letters have to be transferred and frequently need to be teased off with a pick (like a dentist would use).  I do not have a lot of experience with the machine.  My wife and girls are the main users.  I am going to try it with some other pedals that need labeling.  My concern is that the stickers may not weather well; hence, my question above.