I've been playing with this pedal quite a bit lately and it's a keeper. So many fuzzes seem to sound thin to my ears, or may have but one sweet spot, not this pedal. It seems to add a bit of bottom and keeps the mids and cuts through the mix much better than most. It's not an over the top type fuzz, it won't spit or get that velcro type fuzz sound (which I really like too) but the range of this pedal is really something else. From a nice natural boost to warm overdrive to fuzzy lead tones it's a Swiss Army knife type pedal that compliments my typically overdriven Swart (STR-Tweed) amp perfectly. I keep the pedals input and output level knobs each set at about 2:00 and like most other fuzzes, the fuzz knob is near max and use the guitar volume knob for everything, it cleans up better than any other fuzz I've ever used that way. It can sound a little bottom heavy with the fuzz and guitar volume at max but back off the guitar volume just a bit for singing fuzz leads, a bit more for crunchy overdrive or a lot for a warm boost and everything in between. I like it because it's a good fuzz for both rhythm (chords) or single note leads. I should have never sold my (Swart) Atomic Boost (treble booster) as I'm certain the two stacked would be incredible sounding. It's built like a tank, no goop or BS just a perfect build. No A.C input (batteries only) Michael Swart is a purist that way but I'm using a PedalPower battery clip with mine instead of batteries and haven't noticed any added noise that way. I did cut a small groove in the enclosure to accommodate the battery clip cable as I hate to plug and unplug pedals on my board and I don't plan on selling or trading this one anytime soon . ...my two bits (no affiliation at all, just a very happy customer).