The dual-blades on each side are also useful for disarming more traditional weapons (Swords, staffs, etc.), just like a Sai or some types of Parrying Daggers ("Main Gauche") are used. (Of course, used properly, a Sai or a properly made Main Gauche can BREAK a sword.).
Used with both hands, it's used like a short staff, only sharp at both ends. With one hand, it's held alongside the arm (Like a "Reverse Hold" with a knife or sword, but it's intended specifically to be used that way) and used in a swinging pattern, or swung out with a flick of the wrist while moving the body to help with momentum, as well as able to be used to parry with the whole arm (Like a Tonfa).
I took martial arts (Although without weapons), and my GM back home was also taking martial arts, and was a big Trekkie.
I would certainly say it's an exotic weapon, however. And the options given for damage and reach are very applicable. Not so sure about the AP, but that would depend on the quality of the blade (Replica versus Weapon steel and skill of the craftsman. Just like a cheap knock-off Katana wouldn't have AP -1.).