The QC controller would be great if only it would be possible to create presets for quick controls in Cubase, because then you could assign a controller to any track in a way you want in a second from the presets you could pre-make. Even if only controlling one plugin per preset or basic values to control Volume and Pan etc without erasing the track insert when loading a track preset.
The way it currently is supported in Cubase makes this piece of hardware pretty useless to anything else except occasionally controlling the Cubase basic EQ in a clumsy way, or maybe Volume or Pan - unless you are willing to stop your workflow and start to manually defining the controls one by one every time you want to control a different plugin or parameter. It feels like a quite unintuitive way of working really.
Pretty shame really the hardware is beautifully built and could be great, but I think I might return mine back to the store now.