Wide array of modulation effects. I love the chorus and trem settings. I've been working with this pedal for weeks and I have not exhausted the various tones I can get from this pedal. My only quibble is that when I power on I wish it stayed off until I stomped it. I'm so happy with this company that I'm getting ready to buy their Canyon delay pedal. With that combo plus a fuzz, overdrive, and wah will get me through just about anything.