"The Rust Driver was designed to recreate the classic sound of a late 60's Marshall Plexi running at full bore grind. Its carefully selected components allow the Rust Driver to faithfully perform this function with any amplifier, at any volume level. The result is a commanding guitar tone with a tight, thick bottom and extremely low signal-to-noise ratio. A single knob controls output level and gain while 3 switchable EQ curves offer plentiful tonal options without compromising your guitar sound. When you need that 'Plexi Sound' regardless of the playing situation, the Rust Driver is an affordable, reliable, portable alternative to the real thing." -HAO 

This pedal is in good shape. Sounds awesome! Simple and affective. If you're a fan of old Marshalls, give this thing a shot.