Does anyone know anything about this pedal? How much it's worth or if they were discontinued for a reason?

I'm selling my Boss ME-20 and a guy wants to trade me his DSD-2 but I know nothing of it.
Quote by Jearl

...dont play Fender just because its Fender.

Ibanez SZ520QM
Peavey Rotor EXP
Squier Bullet (heavily modified)
Mesa Roadster Head & 2x12 cab