Of distortion pedal / overdrive simple analog.

UTILIZATION

There's no simpler, no need for manual
Note that the update is not mine, it therefore does not have a trimmer inside and sends knob gain serious (too)
mxr type design, robust and simple
fun in it, there's almost nothing! (Very small circuit, much smaller than my NT5) and yet ...

SOUND QUALITY

MONSTROUS, it turns everything into a big Marshall colr (or not). I no longer recognize my blues deluxe. it's warm, rich, full, good.
it is also a sublime couple Tubescreamer.

OVERALL OPINION

Cons:
Tone of a grave (corrected in the new version)
volume (9 neutral)
the most:
the sound of the crunch in full fury beautbr /> transparency
The true bypass
harmonics,
versatility.