The intro, acoustic, part did sound like some piezo quack, then the electric sound was sort of fuzz face like. I suspect the piezo is the choice due to the loud distorted sections to not have feedback. But, I see a sound hole pickup installed. I always thought that a high impedance input on the first pedal would remove most of that "quack". I know if I plug my Ovations into my Randall amp it was better than my Carvin. I think the little Ultrasound acoustic amp is best for that.
Cool Mandolin solo in there too.