This is my first fuzz pedal, and I've used it almost always coupled with the MojoMojo overdrive pedal, and have found it somewhat usable for stoner and psychedelic rock.
My main issue with this pedal is that sustained notes decay in a very ugly digital sounding way as the signal weakens. It's hard to describe for me, but it doesn't feel like it has the "sustain for days" effect I would've liked for leads. Tried the pedal with two guitars. The other one doesn't have very good sustain, and with that guitar the note decay is very abrupt.
For the lack of better words, it sounds very "metallic". You might like this or not, I'm not sure if I do. I kind of wish I would've got some EHX muff variant instead of this one.