I have 2 pairs of studio monitors, 1 pair of HiFi speakers and a pair of live active monitors.
I have my studio computers, a lap top (with mostly audio progs on it) and my smart phone, all the time in my studio.
Now I am able to control all of the above, with just a press on the right button. It simplified my studio life so much. First I was wondering "do I really need this, or I just wanna be more fancy" . Well also being fancy is cool, but the truth is, now my workflow and switching between all of this connections is soo much better! And I also run at least 2 or 3 headphones, which are connected all the time and just turn the right knob, and I m listening through whatever I want. or just sending signal to the headphones behind the drum kit, easily.
I think this is a great product for the price if you are like me, sending signals from many different sources, and also listening with many different combinations. It just does the job !