After all the praise the Calli gets as the ultimate bass compressor, I decided it will be part of my pedalboard for life, so the premium price is justified. I had never read not even a single bad review about it, so what could go wrong, right?
Well, it turns out it's unusable for my needs. I use the compressor as first in line, I play with a pick and I have overdrives further down the line. The Calli adds top-end frequencies which were impossible for me to dial-out whatever I tried and which sounded pretty terrible going through my overdrives.
Maybe it brings to life muddy basses or finger-playing, but for pick-playing and bright basses - it's just too much of "edge".
No complaints in terms of build and quality other than that they could've used a softer on/off switch.
Eventually, I parted ways with the pedal in less than 6 months of use and ended up with another analog compressor that satisfies my needs and which is cheaper even.