I originally bought this just to quicken some (old and awkward) tracker key-commands/combinations. Slowly I have been adding other programs to it and I must say, I´m quite surprised how useful this unit is. System/Sibelius/Cubase/Protools works really nicely with it. For example. adding multiple terminal commands (sudo) is now behind one button. Sibelius has now all kinds of key commands next to my keypad, working basically as a keypad 2. Keys feel solid and they do not make too much noise. I´m really digiging this.