This box is superb for blues/rock. Has organic distortion that is very tubeville! Unlike some "tubelike" pedals that you just turn everything up and that is what you get, there are some options here. It is also capable of getting nicer tones as well when you want to blues down a bit. This effects pedal is perfect for a rock or blues guitarist. The distortion controlled by the Drive knob produces the classic smooth harmonic sound traditionally associated with blues and rock. The Tone knob allows the guitar player to suit his preference to a more bass or treble tone. The level is to crank it up where you end up in metal territory