It's uncommon for me to give five stars for products of any kind. But it does happen, and when it does its because I can't find room for improvement. This is a great pedal that overachieves. I've used it with a variety of amps, including a Supro Saturn and could not be more impressed with the results. I've added this pedal to my short list of indispensables, those being reverb, delay and now this tremolo. I actually thought this pedal would save me coin, as I'd be satisfied with the preamp effect and not really need a Supro amp. Turned out to be a brilliant trojan horse. As always, shopping with Sweetwater is a first class no-stress event.