Probably the best bass wah out there. The true-bypass pressure sensitive relay switching is instant and noiseless, far better than the Dunlop model which has a delay before switching off and sucks tone in bypass mode.
Only downside is I would prefer a bit more control over what is offered, e.g. rotary knobs instead of two position switches so that you could fine tune the volume and frequency range.
Nice functions, good build quality and good sound, but ... the pedal I got had a drop in volume even with the volume switch in the HI position which made it unuseable for me. I tried to contact G Lab support and ask if this was adjustable but got no reply at all. Therefore I had to return the pedal.