I got this pedal mainly to use for volume swells in a church setting. It is a great volume pedal and definitely underrated. Other Morley volume pedals don't have a linear increase in volume whereas this one does, making it more akin to the function of traditional volume pedals - thanks to good ole Steve Vai. It's optical so there are no pots to wear out, thus I hope to use it for a lifetime. Definite 5 stars from me!!!