I really like the Touch-ID on my 5s BUT lately I have found that it is not working reliably. It seems that I have to reprogram my Touch ID prints about every 2 - 3 days. It'll work for about 1 - 2 days then I have to re-program 1 or both finger prints. Anyone else having problems? Maybe when I'm at my Apple store on Friday to pickup the new iPad Air I'll mention this problem to the geniuses.