historically (and continuing) poor quality - since the start of the company - way, way before they started on synthesizers/modular - currently this goes down to using poor quality glue on card inserts on knobs that fall off etc etc
cloning everything that he can get his hands on - mostly 'authentic' clones - so not a great deal of thought put into it - ie to make them more eurorack compatible
cloning modules that are still currently in production...
anti-semetic etc etc
suing people for giving poor reviews
etc etc
if you want more there's a fantastic thread on modwiggler - it's well over a hundred pages iirc - started to stop people commenting on these sorts of things in the main behringer module threads - which I think is poor judgement on modwiggler moderators part - anyone wanting to find information on b-company modules should have a lesson in the ethics of the company before deciding to buy - it's fine buying whatever you want - but you should at least be informed enough to make a decision!
"some of the best base-level info to remember can be found in Jim's sigfile" @Lugia
Utility modules are the dull polish that makes the shiny modules actually shine!!!
sound sources < sound modifiers < modulation sources < utilities