In General, YES there are benefits to "bridging", beyond just Power (Headroom) and Dynamics.
It has been stated that bridging a NuPRIME amp actually "improves" audible qualities.
Most conventional amps see reduced stability, increased noise, and increased distortion.
Bridging the NuPRIME does not suffer these issues and so aside from the normal improved dynamics and headroom, you get a more stable, and quieter or equally quiet sonic.