My Carvin bass enables me to pull a knob and feed the output of the pickups directly to the output (bypassing the guitar's internal preamp).  This is the way I am using the Hartke Pedal.

I was able to find settings that gave my bass more character.  The difference is enough that I feel it is worth the $99.  The pedal adds a small amount of noise (hiss) especially when some of the knobs are turned up.

I subtracted 1.5 stars for the following reasons:
(1) It contains no power supply.
(2) There is no volume knob that allows a person to equalize volume for pedal buttons.  This is a significant design flaw in my opinion.
(3) Hartke support did not reply to my email.
My Carvin bass enables me to pull a knob and feed the output of the pickups directly to the output (bypassing the guitar's internal preamp). This is the way I am using the Hartke Pedal. I was able to find settings that gave my bass more character. The difference is enough that I feel it is worth the $99. The pedal adds a small amount of noise (hiss) especially when some of the knobs are turned up. I subtracted 1. 5 stars for the following reasons:
(1) It contains no power supply. (2) There is no volume knob that allows a person to equalize volume for pedal buttons. This is a significant design flaw in my opinion. (3) Hartke support did not reply to my email.