Carbon fiber is super strong if its well built. If you get a cheap carbon product yea it may breaka nd get splinters, but if you get a reputable company like giant building your frame it will last and i doubt its ever going to splinter, you can probably crash a steel fork and a carbon fork 30mph into a wall and the steel will bend and the carbon will not, if its high quality. Remember, the process of making carbon goodies is a lengthy and costly one. When companies try and cut corners to save on cost, shift happens. But if you pay the price for quality, i doubt shift will. I know people who have the Giant full carbon frame and they love it, plus with such an attractice warranty its nice.