The pa3x is the most professional arranger on the market, i am still very much in love with it, i am using a USB breathcontroller that i route trough my laptop to the PA3x, or just directly to my VSTs.
It takes playing PA3x and wood and brass sounds in general to another level, however, i prefer using the BC most with synth sounds, it makes them sparkle and become alive...
Another great pa3x demo.