Great sound, a robust build, with a simple interface on the front that can be changed with the much deeper software editor, and advanced switching and MIDI capabilities if matched with Source Audio's hub make this a great unit. The distortion models make this into a fantastic unit.
Need a simple fuzz or overdrive sound on a gig? No problem, you choose your favorite model into one of the three user-banks, choose what ranges you want the knobs to operate at and you're good. Want a more complex distortion with folding capabilities? Go ahead and load that up in the second user slot. Doing a cover or a live version where the bass is heavily, say, filter automated or volume automated? Configure it at home to work to a click or an expression pedal with the hub, and bring it in your third user slot. And now you can start replacing the three pre-selected dirt models.
Can be as simple or complex as you need it to be, with a good sound to boot.