I bought it off craigslist and had it shipped to me. When it’s bypassed, the signal comes through fine, but when the pedal is engaged, it’s dead silent. I tried it with the included 9.6v adapter, and also with my pedalboard’s 9.6v power supply.

Here’s a video demonstrating:

http://www.youtube.com/watch?v=dUoCGaafgLU&feature=player_embedded

The seller says if it isn’t working he’ll refund my money and the shipping costs, but assures me that it was working for him a few days ago when he shipped it, and that it always worked before that.