I did notice that the output jack was loose at the store. When i got it home and opened it up, the single white wire that goes to the jack was broken off. One quick solder joint and it works perfectly!
Never played one before, and here are my opinionated thoughts.
It's from June, 2007 and is in 9.5/10 condition. Has the big circuit board, but SMD components and a HUGE chip.
It's definitely not my kind of dirt pedal. Even with the gain all the way down, it's still too distorted and compressed for my tastes. Not surprising, it is part of the "Metal" family of pedals.
The bass knob really adds a lot of super deep low end warble when anywhere above about 4. Lots of treble on tap, too. It usually has to be under 3 to sound balanced.
Well, not my style, but the price was right.

The D+ is more my style (I set it low gain) and it replaces a same era block logo D+ I used to own in 1982-1983, before I sold it when I went all BOSS in 1983. A nostalgic purchase. I had that D+ and Phase 45 on my first 'pedalboard.'
Anywho... I may just sell it or pay it forward to some young kid. If I ever need that much gain, my amps and other distortion pedals can get that much gain in a fashion that works better to my ears.