This is basically the prototype for the JHS Alpine pedal, with its own special touches. It's like a stacked overdrive+boost with a base reverb level and a second reverb that you can bring in with the Shift function. So, you can play your song with one reverb and then kick it into a higher reverb gear for the solo. It sounds pristine, so versatile, with its own delightful shimmer. A legendary pedal.