Let me say right up front that in my book the ONLY compressor pedal for bass is the Cali76 Compact Bass - and I’d use it for Guitar too. This is because 1) the compression is the best you can get 2) the high pass filter gets you past the classic problem of the lows triggering the compression when you really want it on the mids and highs. It also has a blend knob. Now, that being said I would also use it on Guitar because that Blend knob will let you bring back your high end in a natural way.
When it comes to people who who compressors, there are only 2 types... those that have discovered the Cali76 Compact Bass and those who haven’t.
There is a 3rd type who were happy with the Cali76 CB only to have it (unexpectedly) dethroned by the TC Spectracomp!