The Carl Martin AT compressor has the sweet-spot in terms of the sound, the number of controls it provides and yet still super-easy to operate.
The most silent compressor pedal I have so far encountered. The only compressor I have that is dead-silent even if I stack OD pedals.
Fattens the sound in a pleasing way and definitely makes the instrument more alive under the fingers.
Minimally takes some of the very top end away (eg. my diamond and keeley plus is bit sweeter in the top end). But truely unbeatable when it come to feel & NO noise! One of my always-stay-with-me pedals. Superb and robust quality!