This is one of the iconic pedals by Fulltone. If you are looking for a very versatile overdrive/distortion this should be on the top of your list. Essentially three pedals in one small box, the OCD can take you from cranked up Fender Super Reverb tones all the way to Marshall 18 watt small box territory and everywhere in between. The rugged construction and simple layout make it easy to dial in great tones. Plus is has tons of volume and can be used as a boost with other pedals or direct to the amp for searing leads. I have been using one of these for years now, and the tone never disappoints.
The pedal guru