Gunner,
I have used Dan's vArranger for about 6 years and can tell you it is worth the price. I use it with the older Ketron SD2 unit. Through the years Dan has provided me with THE VERY BEST user support I have gotten from any company. It is best used with a touch screen PC laptop and if your midi controller has knobs, slider, and buttons they can extremely easy be programmed with Dan's software to totally control the software.

Deane