I had a DigiTech Bass Driver once, it was my first distortion pedal. Honestly, I thought it was really awful. Sure, you could get a variety of tones out of it, but none of them good... Save up your money and get something better.
As Bongo said, do a search on distortion, you'll get a ton of results
-Dash
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Current rig: Gretsch G5123B + 2x Fender MIA Jazz basses -> GK MB Fusion + 2x GK NEO 4x10s
...and a constantly changing pedalboard