I actually use one of those setups semi-regularly made from Xilica hardware. It does what it needs to reasonably well but that's only enableing/disabling some microphones in a converence hall basically.

The interface is horrible, the feedback on the control surfaces is extremely slow, I don't want to see my meters and faders update at an ~1Hz rate...

Added to that is the licensing costs to actually be allowed to change the DSP routing in the thing which makes me want to replace it with opensource software :)