Very useful pedal. I use it to create two parallel chains of effects for my guitar. Basically, I use on a side a muff fuzz and on the other side a distortion pedal and of course, some delays and reverbs pedals on a side or other. These two chains enters direct in my sound interface (Behringer 204HD). Input level are very useful for mixing two separate sources and I can tell you that there is plenty of amplification available there. I can say that it not affect the sound of your instruments. Very solid pedal, all metal. Maybe a bit weak LEDs in daytime, but visible in dark.