So far, fantastic! Love the sound. I play a Taylor Koa 224-ce-k DLX that I honestly thought sounded like heaven. Then, I plugged it in to this pre-amp and the angels joined the chorus! This pedal adds so many dimensions to the sound. I am still experimenting with different settings, not because I haven't been able to find one that I love, but because I simply love hearing the different tones I can achieve by crossing my onboard EQ with the effects and EQ on the pedal. Definitely recommend!