Heard lots of good things about this little comp so overcame my aversion to micro pedals and picked up a used one. Found it okay on guitar but nothing special imo; when I AB'd it with an old (battery only) Dyna Comp, the Dyna won me with it's warmth and crush. But the Fairfield with bass is something else. Fabulous little box of tricks with a range of sounds from smooth levelling that sounds rich and precise through to a rasping grit when comp is maxed and Pad on zero. I'll try it some more with guitar, as it's so epic with bass there must be some good 6 string sounds in there, I just haven't found them yet - or perhaps it doesn't like a solid state amp, I'll try it with valves. Highly impressed.