There are some paint chips and scratches on the back of the pedal that can be seen in the pictures.
The Conundrum is a medium-high gain overdrive pedal that had me very, very busy trying to find just the right circuit. I went thru several ideas before finding one I was 100% satisfied with.
Utilizing the "?" knob, you can leave it at noon for crunchy overdrive, turn it down to smooth things out or slowly increase it to enter into fuzz territory. You can get some nice pseudo-fuzz tones out of it. I like using my Les Paul with both pickups and full gain to get some juicy fuzz-like sounds.
The mids are a fixed value, but if you want a scooped metal-ish tone just increase the treble and bass accordingly.