FYI: If you're looking for a compact stereo mixer the 4x Stereo Mix by Happy Nerding offers 4 channels in 4 hp.
Though it dosn't have mixups mutes which I confess are pretty handy, and some maybe don't like the dual pot design. (Personally I prefer it)
I don't think there's any question, that all Happy Nerdings utility mixers, including MIA, 6 MIX are around the best modules for bread and butter mixing you will find in modular world...for CV and audio purposes.
Just don't think this deserves the top spot as the best stereo utility mixer...
Knight Industry