I wanted to give effects pedals a try, to spice up my guitar sound. So I bought 3 effect pedals, this being one of them. As it is an overdrive pedal, it is built to emulate the type of distortion effect that you'd get by cranking your guitar/amp volume to high volume, which it does well. This makes the pedal ideal for 60's & 70's style of rock, a style I am into.
However, just like a lot other distortion pedals, at higher volumes it produces a bit of hum, which you can mitigate using a compressor pedal or noise gate pedal.