Punch
Punch is a transient shaper which boosts the attack of your drums, helping them cut through a dense mix or beefy low end Inst. Use it to help a kick blast through an 808, or to make a floppy snare more impactful and snappy.

Body
Body is a fast-acting compressor aimed at bringing up the sustain of your drums while clamping down on dynamic range. Try it with 808s or snares that sound too short and need more presence in the mix.

Boost
Boost offers a set of equalizers, each with an adjustable frequency range. Each equalizer mode has a unique sound and may be useful for a specific purpose in your mix.

Kick 1: A Pultec-inspired EQ profile which sounds great on kick drums, useful for adding weight while removing boxiness.
Kick 2: A wide, classical bell-shape EQ which is handy for boosting low end without adding too much resonance.
Snare: Sounds great in combination with the Punch knob on snares, or to bring out the "chest" portion of a kick to make it smack.
Reso: A low-end resonator which can produce sub-harmonics seemingly out of nothing.
Sizzle
Sizzle is a selection of modes designed to enhance the high end of your sounds. Highly useful in energizing dull sounds and brightening darker ones.

Grit: Especially useful for creating an impression of high-end in sounds which lack it entirely, or sprucing up snares and high hats. Try it with a dull 808 to brighten it up without distorting.
Crush: A jittered bitcrushing effect which can impart a crunchy texture to snares, claps, cymbals, and percussion.
Exciter: A multiband harmonic exciter, useful for livening up claps, snares, and high-hat parts.