This monitor control just does what it has to do, control the volume of my speakers. I already have an interface and I was looking for a simple controller like this for a long time. With the two inputs and outputs this is just what I needed for my studio. The 3,5mm jack input is also very handy for fast listening from smartphones or laptops.
And for last, the Big Knob is quite heavy for it's size, so it doesn't move away that easily!