I've had a few slot-head, 12 fret guitars, and I simply love the esthetics of the design...BUT...yah, changing strings is a drag (and I change every three or four weeks) and access to the higher frets for lead playing is more difficult.I agree that the 12 fret body can often be more resonant. The D-28 S, is a hell of a good sounding guitar!
Now lemme see, which great ancient philosopher (oh yah, it was Joni Mitchell!) said "When something's lost, something's gained?
Rick