The Firefly OD is a sweet sounding low to medium gain overdrive. It features a very neutral EQ that has plenty of flexibility so you can dial in the tone you need. The Firefly is not a clone of any pedal. It is a great alternative to the tube screamer style overdrive for those of you who like smooth overdrives but don't really get along with the TS character. The Firefly can really kick for leads at its higher gain settings too. It has very smooth clipping and a very open sound with a strong but soft attack and plenty of clarity. At the highest gain settings it gets that wonderful sag and compression of a tube-rectified amp.