flex sensor question

hi!

i would like to know a little about the 4.5" flex sensor listed on sparkfun.

i am planning to use it to sense folding of fingers on the human hand (possibly by mounting it on the inside of the fingers) . is this kind of a sensor a good match for my application? also if anyone has done some testing on these sensors, i would like to know the life, reliability, accuracy, linearity etc. of this sensor. and especially if there are any pitfalls or precautions for use…

thanks!