It places the bridge more towards the center of the top, so you'll get a warmer response from the treble strings, more bass response and likely more volume overall. It is much more comfortable (personally preference) for a small to average sized guy since the nut is also closer to you, meaning that if you do any type of possibly difficult to reach "F" bar chords, it'll be just a bit easier to get to. Those to me are all of those all huge advantages. The only disadvantage is that if you use thumb over the top style bar chords up around or beyond the 11th or 12th fret, you run out of room. The same can be said with any high register chords. ALL of this is based on my experience with Taylor, who have modified the neck to be shorter. Martin and other manufacturers modify the body to be longer, so though the tonal enhancements may carry over, the comfort doesn't.
That is just my experience. My 522ce 12-fret is without a doubt my favorite guitar (playing and sounding) and my go to for almost anything.