No brainer here. Nano sized pedal with one volume knob, that's it. The Signal Pad is a passive attenuator that allows you to instantly switch to a different preset volume. It's your own "guitar knob" in a box on the floor, does the same thing when you roll back your own guitar volume. This box will be your other pedals' best friend. Use them in conjunction to experiment and find that sweet spot you desire. The Electro-Harmonix Signal Pad will do more for your sound than you imagine. Can't just have one!