OK, I'll chime in.
I think the PA-4x is the best designed arranger I ever owned. The harmonizer is top notch, the navigation is intuitive, the editing is deeeeeep, and the size/weight factor puts it in the most convenient to travel with category. Key feel is excellent, build quality is first rate, and so far, anything I wanted to edit/change has been possible. Multiple outs, organ drawbars .... it's the whole package. If it had speakers, it could possibly be wife #4.