I use this on Bass, basically just because i wanted to see how it would perform. Been using it ever since because it does a pretty good job, satisfactory for the stuff i use it for (every now and then in some coverbands/hiphoppy projects). The tracking is suprisingly good down to the lower notes on the A string (for me around the B) on the G string C it has kind of a deadspot, just doesn't seem to like that frequency. The sound has a nice organic flavour to it, not as synthlike as f.e. the Boss OC pedals. Rolling down the tone makes it go into that direction more. I never use the sub octave, on bass thats just too much, so i just took that nob off completely (easily pulled off). Its a bit chunky, but for that reason pretty sturdy too. 4 stars because theres obviously better (but more expensive) alternatives, but the nether looks cool, does the job well and takes a beating.