Like all the SansAmp products this is just as much at home in a recording studio or the stage. Create three separate tones and have a wide variety of tones ready for you at the press of a footswitch. Power it by phantom power so you don't have to worry about your battery going dead... (If you don't know what phantom power is, do some research. You really should know what it is...)
Still all analog signal. Digital is only used for saving the settings. I think Tech 21 was ahead of it's time when they implemented this. Today, many high-end pedal makers are doing digitally controlled analog ciruitry.