I got one of these for free. I use it as a submixer for a bunch of small noisey boxes and keyboards wihtout MIDI or CV/Gate inputs. The software on this thing is not bad, effects are not that bad but the hardware.. oh my. Most of the time it works but there is for example a tiny, tiny fan on the right side of the unit making a whirring noise. Why not use a bit larger one? This unit heats up you know.
The hot glue used by Behringer for gluing flat cables into place is probably oatmeal. When the VU meters start to light up by themselves it is time to open the hood (it really opens up like the hood of a car) and nudge the flat cables back into their place and maybe apply some better hot glue. Second time I had to do this. Now everything works again, for a while at least.