Primarily, the main problem with Behringer's also affects much Mackie and similar budget gear... They use a LOT of surface mounted components, especially knobs, switches and sliders, so when something goes bad, it's often the entire board that needs replacing rather than the ONE thing that went wrong. The other problem with surface mounted componentry is that impacts to knobs and sliders get transmitted DIRECTLY to often the main board... Not good!

But it's a LOT cheaper to make, so swings and roundabouts, I suppose...