While this may not be the most pedalboard real estate friendly or boutique sounding Muff on the market, the Deluxe Big Muff makes up for it with the massive array of tones hidden inside of it. There is the regular Big Muff control panel but underneath is a bass boost switch, which when activated will beef up single coil pickups. There is a built in noise gate which is a big plus. As a result, I run the Muff last in my string of gain pedals so it quiets any noise coming from any of them when it is on. The attack knob does just that: adds more attack to your picking. Where this pedal really shines above the rest is the foot switchable Mids section. It allows you to dial in a scooped or boosted mid tones so that depending on your circumstances, you either sink into the mix or are right at the forefront. A handy tool for solos. Now it is a monster on your board but I think its a worthwhile investment if that's the kind of tone you're looking for.