Tried it just now. Pretty good, I'd say! Much better sound than a distortion pedal, less harsh. I whacked up the drive and blend to max, the treble and volume to half and that was a good bit of overdrive. Too much treble and it sounds too harsh (but I have a lot of treble on the bass and the amp). Oh and I used it with a Laney R500H amp with an Ibanez SR300 bass.