I don't know why no one wrote something about this pedal yet... It's cheap, but sounds good! I need to say that for only $55 (CAD) you get a very good sound, and you have a good control of it with 4 knobs! I used the Boss SD-1 for 10 years, and I think this Drivetrain gets the same vibe, but with more range and tone control. I'm not giving 5 starts because the Volume knob need to be around 10-11 hours to be even with the volume without the pedal.