Not all the behringer stuff is crap.
I have a Virtualizer Pro (delay, flange, standard generic outboard) which has balanced ins and outs - useful for adding effects to synths with analog outs, grungy guitars that need a little flanging, and so on. Most older synthesizers aren't exactly high fidelity anyway. Maybe my triton is, but most everything else I own synth/module wise is somewhat noisy to begin with.
I have a Composer Pro (stereo compressor) which also has balanced ins/outs and it's somewhat useful... I can easily make the compressors huff, but again it's useful for some things. Taming an overcaffienated drummer for example
The one Behringer tool I use fairly often is the Ultra-Curve Pro (the older, 8024 one) - essentially a stereo digital EQ, with the optional AES/EBU module. This allows me to convert stereo analog to digital, stereo digital to analog, and have recallable EQ settings via Midi.
While not perfect - there is some noticable harshness in EQing cymbals and things like that, overall its a nice unit for what I paid on ebay. The digital in, digital out and midi control is what excited me. I can tweak things with my fat lazy ass on my console chair.
I also have a Ross DPX Mainframe which essentially is the same thing, except it has revision 1.00a code, and has many bugs which they don't tell ya about when you buy it. Of course it was discontinued before Ross put any serious effort into it so I use it as a stereo EQ between my console and my front monitoring system. I have several "tweaked" EQ settings that are instantly recallable, which make the monitoring system sound more like other systems. "British" is one of my personal favorites... it's actually inverse of what most british consoles would sound like, so as I mix I'm psychologically forced to compensate, and the final result (with the EQ bypassed) is somewhat of a more british sounding mix.
Anyway, not all behringer stuff sucks. Some of their older stuff made good paperweights and that's about it.