I really like this pedal- I have a four-string bass but occasionally feel the need for some really low tones- or for a little low octave in the background for a little more growl... I think with all pedals- and with bass in particular- a little and sparingly- are what works best. I guess if you turn it up full it won't sound good- but then no effect will. I don't use the second octave and only use it in a few songs- but I really like the sound it gives and haven't noticed any negative effects at the settings I use it at- which are either just octave 1 (no original tone) and or just a slight additional lower octave. I always use an isolated power supply so don't have any issues with battery consumption. Really good value for money and it seems well made- definitely no problems so far.
Not bad at all!, sounds good in front AND in the FX loop of an amp.The (HI MID LO) range selection is a really cool feature too! I mainly use this pedal with a gritty Rock tone and i think it sounds great.