I was searching for a compact midi controller that would work for the Avid Eleven Rack, which I use for live shows. Because of its small size, I decided to take a risk on this one and its matching expression pedal. While this controller doesn't come pre-programmed for the 11 rack, there are two easily accessible custom modes that are pretty intuitive to program--though to be honest the manual is thin and not well written. The lower four buttons can be set to PC, which lets me scroll through four rigs per bank (in order). I have the top four buttons are set to send CC, which I've assigned to my most used effects. The whole thing is not much bigger than three full size pedals and fits very nicely on my small pedal board. It appears to be well constructed and the screen is easy to read. I've had a chance to use it live in three shows now, and I'm very happy with it.