Let's give Nambu a little bit credit
It does have two advantages. Its bolt is the smoothest one that I've seen on wedge locking guns, definitely way better than that of C96, probably even better than P38, or 92F. The wedge moves up and down easily, and there is a pulley on the tip of the hammer which helps bolt moving big time! Very unique.
The grip shape is not pretty but fits small hand extremely well, and grip angle is correct -- it points as good as Luger.