When it comes to bass effects, sometimes less is more. In the case of a bass overdrive, some pedals tend to just give you one really bold setting which can be too much in some situations. The ODB-3 Bass Overdrive allows me to dial in just the right amount of fuzz or crunch to my sound to really cut through the mix on a grinding solo or go full out and create a HUGE overdrive sound to compliment those 7 string guitars rocking right beside me.
This pedal is great. Take the time to read the manual, try out the different suggested settings, and then tweak them to your needs. It can warm up your sound, make you fuzzy, grindy, or just straight distortion. It also sounds great on the low B.