CHARACTERISTICS level not much things to say is simple.
Overdrive with a knob of three rglages could not be more simple, and a boost with a rglage indpendant.
A small subtilis all of the same, there are two kinds: one allowing the use of boost and driver, and an output Clean Out, allowing only the use of Boost.
Practice!

UTILIZATION

The complexity of use is that of a conventional pedals! So easy! Four good EQ knob and forward.
Simple but effective.
No need for manual is plug and play.

SOUND QUALITY

Its level is that all the accelerated
An extremely good pedals that covers the sonic palette of rock in all its forms.
Overdrive of the lightweight, a big crunch, she knows everything. It possde some characters, but always respects the hardware on which it is connected.
Big influence of scratches and the amp much empty.
I just apprcier able to go a bit further into the gain, but hey ....
It is particulirement transparent, no breath, no interference.
Internal power supply (9v) stabilized is practical unless you have a block of power supply SPECIFICATIONS.

OVERALL OPINION

I use it for four months, and I am satisfied. This as my current config Tte Orange Rockerverb 50, enough for me and I do not use more than Boost (hyper-effective elsewhere.
Good pedals. The report quality bargain price (around 130) is quite correct.
Carl Martin quality. It's solid. The switch seems a little feeble, but shows no sign of fatigue is that it's good then